Recently I had to solve a problem of a very slow transfer of files between two computers on a LAN network using an Ethernet cable. Both machines had Windows 7 x64 installed and the transfer speed was ridiculously slow at 10-15kb/s. Using Task Manager under Networking tab, Network Utilization was showing only around 0.25% for Local Area Connection.
I looked around the web for solutions and found quite a few suggestions on how to tackle this problem. Those that I tried and the one that finally solved my problem are discussed here.
Turning off "Remote Differential Compression"
One of the first suggestions that I came across was to turn off this Windows Feature in Windows 7.
This suggestion is common on the web but it turns out to be just a myth.
This is 100% false. Neither Windows Update or file copy operations use RDC at all.
So I ignored this suggestion and continued looking.
Disabling "TCP Auto-Tuning"
This is another common suggestion that I came across and it uses NETSH command-line utility used for displaying and modifying the network configuration. To make the necessary changes, we need to run that utility as an Administrator.
- Open Command Prompt as Administrator:
- Click on Start Menu
- Type Command in search box
- Command Prompt will show up in results. Right-click on it to open Context Menu
- Select Run as administrator
- If User Account Control Window shows up asking if you want to allow the following program to make changes, select Yes
netsh interface tcp set global autotuning=disabled
- Restart the computer
- To verify that the auto-tuning is still disabled type in Command Prompt:
netsh interface tcp show global
This suggestion still didn't solve my problem, so I looked further, but before doing that I wanted to set Auto-tuning back to the default value by typing
netsh interface tcp set global autotuning=normal in the Command Prompt (running as an Administrator).
Disabling "Large Send Offload (LSO)"
Large Send Offload / LSO is a technique of improving network performance while at the same time reducing CPU overhead. Apparently, it does not work very well, so it was suggested to disable it.
LSO is an option located in a Device Manager under your network adapter, so this solution requires Administrator Privileges.
Follow these steps:
- Open Start Menu, right-click on Computer and select Properties
- Under Control Panel Home located on the left side of the window click on Device Manager
- You will get a list of all devices on your machine. Expand Network Adapters.
- Find your Network Card and double-click on it.
- Select Advanced tab. You will get a list filled with different options.
- Select Large Send Offload V2 (IPv4) and set the value to Disabled
- Do the same for Large Send Offload V2 (IPv6) if it is available
- Click OK
After clicking OK, I tried to send a file over the LAN network. The transfer speed started very slow, but it was gradually picking up speed. I decided to restart the computer and try to send that file again and this time it worked like a charm.
Now that sending of files worked as it should, I also checked the speed for receiving files. It turned out that it was still slow but all I had to do to fix that was to disable Large Send Offload V2 on the other computer. Once done, the problem was solved for receiving files as well.
In this post, we examined different ways to solve slow speed on a LAN network. One of them is just a common myth, but for the other two you need to have administrator privileges. I hope you found this article useful. Consider sharing it on a social networks. Comments are also welcome.
If you solved your slow LAN speed problem in a different way, let me know how and I might add that solution to the list.
Yann TakvorianJuly 29, 2013
Thanks a lot for that !!!
After months enduring a terribly slow transfer between two win7 computers, after having reinstalled the OS, turn off all firewalls, all anti-virus and even reinstalled all LAN card drivers, I could not solve this issue. Transfering a 500K file could take up to 15 minutes !!!
After disabling the LSO on both computers (no need for reboot), the transfert took less than 1 second.
Thanks for this and shame on M$ engineers 😉
gausJanuary 13, 2014
Hey Brother, i am also facing same problem my transfer speed is about 1-1.5MB/sec......i just want 2 ask u that disableing ipv4 & 6 is enough?? To increase transfer speed..........
adminJanuary 17, 2014
This article is for those cases when LAN speed is really slow (like 20kb/s). You probably have a different issue.
NeilFebruary 19, 2017
I Hope everyone will red this post. So I tried the above and network transfers still 10.5 MBs went into my router and was fishing around and found that I didn't have QoS turned on after turning it on, I went from 10MBs to 80MBs hope this will help out others good luck.
GeorgeApril 10, 2019
Brother this Lso should be disabled in server or other connected computers in LAN
macnsMay 30, 2014
Actually this worked for windows 8 too with speeds @1mb/s. At first i got around 20-30mb/s, then dropped @1mb/s, and now after disabling LSO, finally works @85mb/s.
AmbidexterJanuary 14, 2017
Kinda like asking "If I take off the wheels on my car, and drain my gas tank, the car will be lighter! So, it will go faster, right?"
CleJonsJuly 20, 2018
Funny, I'm trying to see what you mean. Keep in mind, the data has the ability to flow. The car you mentioned can not move now. Wouldn't it be better to say "after I realized I needed to press the gas more, the car went faster". That is a bad analogy too but I did not prevent the car from moving.
IsaApril 9, 2017
Yep its worked like a charm thank you so much.It immediately boosted it from 1 mb to more than 10 because i didnt stay long to see it i just wanted to know if it works and yes it does .But this applies to cable transfering and I had to connect my laptop directly to the router.How can we do something similar through wireless to cable or the other way around ? And thanks again this is an issue I have had for years with my friends.We used to wait for 30 to a full hour when trying to copy a game over lan
ManasanOctober 27, 2018
There is no Large Send Offload V2 (IPv4) option in the Advanced Tab. HELP ME
Earl M MillerAugust 7, 2020
I cant get my speed to speed up someone have any ideas.
What I have ASUS AX11000 Router Both PC's are wired. I have Fios both PC's if I download from the internet I get 881Mbps as I have 1Gbps Up and 1Gbps Down. If I try to transfere a file either copy and paste into a shared folder or ftp from one pc to the other I get Kbps not eve Mbps. Why is this both running windows 10. Like I said it cant be drive speed as I said if I download and write to the same Hard drive I get 881Mbps. I tried all of the ideas on this website and nothing fixed it. I started thinkig either Bit-Defender or something ?
Christian RSeptember 13, 2020
I had the same issue and I wasn't able to get anything faster than 1.5Mb/s. After reading other posts and seeing the 1.5Mb/s, I've concluded that we all have something in common. And it's the limitation of the chipset itself (Broadcom has the same issue with their IC's). Once I remapped my drives from //Server/k to //192.168.1.xxx/k, basically went away from the name and put the IP address of the server instead, that fixed the problem, as the data doesn't have to be relayed over and resolve the name to IP. Now, i'm pretty much limited by the throughput of the Drive. No matter if the drive is connected directly or I'm copying to it over the network, the speed is the same. Good luck everyone. Please let everyone know if that worked for you. Thank you. Cheers!
tom k-wJuly 13, 2021
for me it was the fact that i disabled 5ghz radio on my asus router coz i was on ethernet cable. i had 2.4ghz radio on the router so that the phones still had internet and longer range internet, at that, too.. I got another pc and decided to use the wireless on it to transfer from ethernet pc to wireless pc on the home network and found it going at a transfer speed of 6 MB/sec. I remembered that the 5ghz radio was disabled and paused the transfer... proceeded to enable the 5ghz radio on the router and reconnect to the network on the wireless pc. when i started the transfer back up it was goin 5x the speed at over 35 MB/sec. I don't like the high speed radio, so I disabled it and then it turned out to be something I kinda regretted... be mindful of previous reviews into your system.
SantoxthanksyouAugust 21, 2013
Mate, it worked like a charm for me also without a restart so thank you very much. Just makes me wonder why this setting has caused me this problem when it never has before? Oh well, it's working now and I don't have time to ponder that.
DomyAugust 26, 2013
hey, I woud like to thank you, but it not solve my problem. Do you have any other idea? I have 2 pc with win 7 home. The lan speed of connetcion is below 2 Mb/s.
adminAugust 26, 2013
Try booting from "Safe Mode with Networking" to see if some third party software is not the cause of the problem.
Another possibility could be a defective cable.
AdamSeptember 3, 2013
I went to the advanced tab as mentioned above, and I have "Jumbo Packet", which I assume is the same thing as LSO. But it is set to 'disabled' already. What else could be the problem here? We have a mix of xp and 7, with our server being 2003 SP2
RangarajOctober 27, 2013
Enable the "Jumbo packet" to highest value for solving the issue.
TonySeptember 9, 2013
Same issue as Adam: srv2003SP2 and 24 pc, mixed XP and 7 = super slow network...my customer is about to kill me !
sunil vishwakarmaMay 5, 2014
you can try all pc same os install same bit
castielSeptember 13, 2013
this tutorial helps me alot.. thank you
TordOctober 9, 2013
Saved the day for a Windows server 2012 with 16+ clients 🙂
stephen tidwellOctober 28, 2013
this helped my issue with windows 7 machines but doesn't do a damn thing to help with windows 8 or 8.1
arunJanuary 17, 2015
Iam also facing similar issues , between 8.1 OS and windows 7 , where the speed is about 8mbps but cant we make it to more than 20 ?
KapilJune 1, 2022
Does it work on win-10 also. Kindly help me to improve speed in win 10 ,
RoamingChileOctober 29, 2013
Thank you! Your last suggestion worked in the midst of a Windows Easy Transfer. Network utilization was less than 1percent on two Windows 7 64-bit machines. After, it jumped past 60 percent and stayed there on both machines. Thank you so much for sharing this info.
ChrisNovember 2, 2013
Finally!!!! I have been battling this for along time. My problem was RDP and file playback from a Win 7 64bit to a Win 7 32bit. Before the fix it was so trying do either it was not an option disabling “Large Send Offload" worked for me. Thank You Thank You
BuyoyNovember 6, 2013
this article saves me. thanks a lot!!!
Peter ForsterNovember 12, 2013
You just made my day! Thanks so much. After stuffing around for nearly a full day without success I finally landed on this site and B I N G O !!! I still do not know what caused the problem but it appeared immediately after installing a new Internet Security Software on all Workstations. Thank you again.
Leonard LayNovember 30, 2013
This worked wonders. I had my Pictures folder (40 GB) that I needed to transfer to the new 3 TB drive located on another networked computer. It at first said 19 hours, but after this fix it's down to 8 hours. I still think that's too slow, but it dropped to half so thanks for that.
AlexDecember 19, 2018
40GB in 20 hours? I just sent 35 in 10 minutes from my laptop to my PC... at first i did it normaly, it won't go faster than 40 mb/s.. after i tried this even without pc restart, went up to 100 mb/s but mostly around 60-70mb/s. I did the settings on both, pc and laptop...
Wait, your comment is from 5 years ago.. maybe technology improved since then, but again, my laptop is an old lenovo, i belive 2014-2015..
dimaDecember 15, 2013
PaulDecember 18, 2013
Thanks for the info. Definitely helped.
MishDecember 20, 2013
God! it's awesome thank you! till now i was like using an usb drive to move file between my comps now i can copy! i can COPY, my speed was like 5k and now it's 5mb! thank you !
JonJanuary 11, 2014
Had the same problem. My network server is XP machine. My new (used) laptop is Win7.
The "Jumbo Packet" setting did not solve the problem. I solved it by changing the "speed/duplex" setting in the advanced tab of the XP server's network card properties to "Full Autonegotiation". It had been set on "Force 100" My speed went from about 150kB to 10Mbyte.
adminJanuary 12, 2014
Thanks for sharing your solution.
mehrdadSeptember 13, 2016
u rock man ,ty
Rob TApril 5, 2017
So wrong on so many levels.. Your not getting 100MB, changing the duplex to full negotiation would only help if you have a high speed than 100MB (1,000).
GamalFebruary 9, 2014
Disabling LSO worked for me too - Thank you 🙂
[email protected]February 11, 2014
I can't belive, that works on W8.1.
AmirFebruary 13, 2014
I Had the same problem, disabled "green ethernet" and fixed the problem.
ThomFebruary 23, 2014
Disabling the LSO on our Windows Server 2012 fixed the problem for us.
Ole DufourFebruary 26, 2014
Off the hook ! Thanks a million !
It must have taken you hours and hours and hours to find a solution.
ramakrishnaApril 12, 2014
thanks a ton
KaliApril 22, 2014
Finally a solution which works!
DredzedApril 23, 2014
Excellent solution, option 3 worked a treat after months of doing battle with it. Thanks
John TriantafyllouApril 24, 2014
First i realy want to thank you for this.still,i don't understand why the speed is about 2 to 3 mb/sec when sending a large movie file...
nolsenApril 29, 2014
It realy helped me.
LanceJune 2, 2014
Man I have had this issue for a long time. I thought that I have tried everything to pickup my LAN file transfer speed and nothing worked. Till now. I disabled LSO and WOW! Even large files transfer in seconds. Thank you very much for sharing this info.
Chris MayellJune 5, 2014
Bravo!! The LSO solution worked like a charm.
You're amazing. 🙂
SayanJune 17, 2014
DarioJune 18, 2014
Thanks for the post.
Disabling LSO for IPv4 reduced of 3% my bandwidth so I kept it on.
MehmetJuly 6, 2014
I'm sorry, I've tried all the solutions, unfortunately, my problem continues ..
Win 7 to XP Copy fast
XP to win7 fast,
but slow from win7 to win7 .. 100-300 kbsn 1,50 gb Total = 5 hour
LukaJuly 7, 2014
I also had 1 MB LAN transfer speed and found one thing that helped !
Try disabling IPv6 - now it's around 80 MB per sec.
system on both computers - WIN 7
BehzadJuly 11, 2014
Thank you... It works...
speed 10 kb/s ==> 5.5 Mb/s
Jane V.July 16, 2014
I have 3 PCs. PC1 is our server PC with a practice management program. I have mapped the drivers of the 2 workstation PCs to the server PC for full access of the program (read and write). I have turned off LSO and network speed has improved but only when one workstation is on at a time, when both workstations are on, network speed is slow. Does anyone know what else could be the issue? Have I mapped the drivers wrong? Do I need to reset my modem?
TomJuly 31, 2014
Boosted LAN transfer from 355kbps to 10Mpbs. Thank you!
PaulAugust 15, 2014
Wow, changed settings in the middle of a copying files. Estimated time started at over a day and dropped to mater of about 20 minutes.
AbeAugust 30, 2014
Worked great make sure not to forget the reboot. leave it to microsoft to have a feature for really slow file transfer.
seanAugust 31, 2014
Tried looking for this option on my windows 8 machine, and don't see the options listed under the advanced tab when I double click on my network adapter, could it be stashed somewhere else? Called something else?
cheezdawgSeptember 2, 2014
When using Acronis True Image, to back up to server daily (around 200GB) I used to get around 55%-75% (up to 750Mbps) network utilization on a 1Gbps LAN, both card are running at full duplex 1Gbps.
However for some reason the speed will not cross the 50% threshold?
Only thing that's changed is the addition of a micro SATA SSD as the boot drive.
Kyle BultmanOctober 10, 2014
My transfer speeds just went from 6mb/s to 90mb/s!!!!!!!!
Thank you sooooo much. Now I just need that fast speed out of my wifi. Is there a trick to that too?
Kristoffer LynchOctober 21, 2014
AidanOctober 29, 2014
Hey, thanks for this, but I still have the same problem. 1MB/s over a 100Mb/s .. other ideas?
NagababuDecember 2, 2014
After doing all the steps, issue not resolved can tell me other way.
daveDecember 19, 2014
It worked for me although in my case the v2 options were already set to disabled and the non-v2 option "large send offload (IPv4)" was enabled. Changing this to disabled on my Vista and windows 7 laptops connected by a cat cable increased the adaptor usage from 2% to 99% after I restarted the download.
THANK YOU MAN!
Kelly SchneiderDecember 24, 2014
KienDecember 30, 2014
I don't see Large Send Offload. I only see TCP and UDP Checksum Offload ??? HELP my speed is only a few kbps
adminDecember 30, 2014
If TCP and UDP Checksum Offload are enabled try disabling them and see if that does the trick.
Ash NallawallaFebruary 6, 2015
I have something different - "Task Offload" in my Atheros L1 Gigabit card, Should this be done on both computers or just the sending one? Assumed both.
BrianJanuary 4, 2015
Thank you so very much. Its working as if my network is on Steroids. I have a NAS connected to my network and only the top folder would connect and the rest of the folders would take up to 15 seconds to give me the log-in window, now, it doesn't even take a second.
FrankJanuary 14, 2015
I appreciate you writing this up! It appears to be the answer to my problems as well. The only question is, I have 300 workstation... Is there any way for a Group Policy to be made for this so that I don't have to visit 300 workstations?
KERRFebruary 25, 2015
The Offload setting fixed my Windows copy speed! Funny though, if you use a different copy manager like TeraCopy, speed was pretty good.
Kent ClarkMarch 21, 2015
Wow! This worked "like a charm (Quote from "Santoxthanksyou" above)"! Thank you... wish I'd seen this article a couple years ago... changes the way I operate my home network -- so very much for-the-better. I followed your steps exactly for both computers (the third suggestion, the one that worked, the "LOS" option) -- didn't even have to re-boot (but will do it anyway) before this put the transfer speed "on Steroids (Quote from "Brian" above)."
RobinApril 19, 2015
Thanks for posting this. I put a Netgear NAS on my home network a few months ago and have had faster access over WiFi than Ethernet (over Ethernet it could take 12 hours to import a CD into my iTunes library on the NAS). Using JDSU, I was able to see that the problem was the number of re-transmission, but only from the pc to the NAS, not the other way around. I had to both disable LSO and enable jumbo frames to get the performance improvement, but importing a CD now only takes a couple of minutes.
daveMay 2, 2015
I get to step 5 and instead there is no list of options under the advanced tab... Just a button "nvidia Ethernet configuration" which when I open it lists some options but not the LSO option... I can't seem to fix my problem.
Warren CMay 4, 2015
I tried all 3 options but the speed just around 300k.
I tried to get into the network adapter setting and find the "Link Speed" is set to "100mb Full Duplex", so I set to "1.0Gbps full Duplex", after 20 secs network adapter re-fresh, then the download speed upto more than 10mb or above per second.
DieselsolutionsMay 4, 2015
One man can make a difference, thank you for your straight forward solution. God bless
JurMay 27, 2015
Some time ago I experienced a slow connection when transferring large files. After I disabled large send offload on my networkcard ( killer e2200 gigabit ethernet controller (ndis 6.30)) it worked again. Since yesterday I have a slow connection again. I didn't install something new and LSO is still disabled.
Any ideas how I can fix this?
Thanks in advance,
GA FRANKJune 18, 2015
Thank You so much, unbelievable how much differnce this change made.
manaJuly 31, 2015
Thank you for the info.I really helped was struggling with slow lan for 4 days nothing helped but these changes made wonders..
xxxAugust 9, 2015
OMG! Can't believe this. Disabling LSO increased my speeds from 4MB/s to 40MB/s. 10x the speed! Saved the day for me.
KaranAugust 14, 2015
I had 1MB/s speed on my Win7 computer, after disabling LSO the speed went from 1Mbps to 70 Mbps. Thanks a lot for sharing the solution.
Mahendra WardanaAugust 25, 2015
That helped me,,, thanks 🙂
SayleeAugust 25, 2015
I was transferring data over LAN between 2 laptops one of which is Windows 7 and another is Windows 8.1 at speed of approx 1.30 MB/s. I tried ll your suggestions to increase speed. But the speed reduced to kb/s.
JustaguyJanuary 24, 2016
I just wanted to chime in and express my gratitude for this solution. I've been suffering speeds of 300 kb/sec at the max, trying all the Windows troubleshooters and everything else that they officially recommended. Disabling these Large Send Offload things increased my speed to 30 mb/sec.
AnthonyFebruary 10, 2016
Ah finally i found a solution! Speeds between cabled PC's where about 18 MB/ps. Starts of at 105 or so. After this it is steady around 80/90 MB/ps. Thanks my hero 😉
BTW: this fix also works in Windows 10 x64
BuzzMarch 15, 2016
I tried these without much luck. What ended up fixing it for me on my troubled workstation was the network card was set to a static 100Mbps & Full Duplex instead of auto negotiate. Turned on autonegotiation and bingo.
Hope this helps
JayMarch 31, 2016
Didn' work for me
sending OS Windows 7
any other option ?
Some GuyApril 7, 2016
I think I might owe you something huge for this, but have nothing to offer.
Please note that, for me, the solution required disabling of all of LSO (IPV4), LSO V2 (IPV4), and LSO V2 (IPV6).
This brings about the end of a very long-term frustration. Many thanks for this post. You deserve an award or something.
Slow ManMay 2, 2016
Excellent! Thank you very much. It was one older computer on our network that was slowing down other resources. After disabling LSO on that station it has helped all around.
John DoeJuly 23, 2016
I did the opposite. I enabled Jumbo Packets, the largest size. That fixed the problem. I was getting 100KB/s before the change, and after I am getting 12MB/s. However, my case is special. I am downloading over a university campus LAN.
DiyadulquerJuly 30, 2016
Thank u it was intresting
aliSeptember 6, 2016
My XP network is very slow until I disable and enable network! Why?
adminSeptember 7, 2016
This can be caused by Bonjour service.
If you have that service running, check this article on how to remove it.
Costa ZachariouSeptember 8, 2016
On the LAN the LSO worked wonders. Thank you, thank you and thank you. Any ideas how to fix slow speed transfer over VPN? I know to some degree the speed is reliant on the VPN provider. Waiting anywhere between 12hours and 18 hours is way to slow for a 20gig file. I am getting speeds of 434kb or less. I have disabled LSO IPv4 and IPv6 on both the remote computer and the local computer but speed is the same. Very slow.
adminSeptember 8, 2016
Check this article. It has quite a few suggestions on how to fix slow VPN speed.
Costa ZachariouSeptember 9, 2016
Thank you for replying. For some reason it does not open. I will have to try from home.
SalehSeptember 10, 2016
HI could anyone help please I tried all the solutions here and in other posts nothing change in my transfaring speed
it set between 2 MB/s and 3 MB/s .
two laptops wired by lan directly WIN 10 64bit both laptops .
any one help ??
RobertSeptember 22, 2016
For years I struggled with slow speeds thinking that it supposed to be like that.
Srini JOctober 27, 2016
In addition to fixing NIC drivers and disabling green ethernet and LSO, I had relatively slow transfer speeds of about 15MB/s between one Windows 7 and one Windows 10 PC connected using 1GbE NIC interfaces. After using TCP optimizer [http://www.speedguide.net/files/TCPOptimizer.exe] on both the machines with "Optimal" settings, I now get about 80MB/s. The same two PC's running on Linux (one Fedora 23 and one Lubuntu), gives 111MB/s.
SagarNovember 30, 2016
My Intel NIC doesn't have Large Send Offload option....!!!
It has option named "Jumbo Packet" and 3 value for that, "4088 Bytes" , "9014 Bytes" , "Disabled".'
By default it was Disabled..!!
What should I do ????
adminNovember 30, 2016
I have found this SuperUser question about "advanced parameters for Realtek PCI-e GBE family network card". It might help you steer into right direction. For example, the answer has the following information about "Jumbo Frame":
Malik KhayyamDecember 2, 2016
thats just awesome! Thumbs up for you
DavidFebruary 1, 2017
Thank you very much for this solution, transfers one way were down to 10-20kb/sec when they were at gigabit the other way. Now both directions work. What a stupid feature.
MikeFebruary 17, 2017
Thanks so much! The large send offload was my problem too transferring files between Windows 8 computers, only in one direction (wireless to wired). Now I'm maxing out my wifi again.
okehrecords67April 23, 2017
Disabling Large Send Offload on both win 7 machines worked like a charm - thanks man!
Hritwik JadhavMay 6, 2017
Thanks a million! My file transfer speed over an ethernet cable was awfully slow. About 25kbps. I did 'netsh' change and it boosted up to 8mbps. Then I advanced and did the 'ipv4 and ipv6' changes on both of my laptops. Voila! 71mbps, without a restart.. But as soon as I opened another folder in the file explorer of my sending laptop, the speed dropped to around 46mbps, and the laptop started lagging and hanging. When I let things get stable, everything was back to normal. After everything, I reverted the settings everywhere, to avoid falling prey to anything fishy, should a problem decide to approach me in the future.
Again, Thanks a million!
RajputMay 9, 2017
Hi, Frendz it Did't work for me any other solution plz rfr.
BharathMay 29, 2017
From 1 to 11, though slow, but much better than earlier. Thanks a ton.
Chibueze IwualaJune 8, 2017
Thanks for this article, though, I wanted the transfer speed to be above 100mb but it became better after following the steps provided in this article.
Thanks ones more.
TSH77seSeptember 17, 2017
THANK YOU!!!!!!!!!!!!! my god.. from 8mbit to 4-600mbit just like that.. and I have been living with that slow network for ages... feeling pretty damn stupid, why didn't I check this out before. Well anyhow thank you VERY much!
Nadeem GulSeptember 18, 2017
I'm having the same issue but on wireless network, there is no such option "Large Send Offload V2 (IPv4)" in Wireless network adapter's Advanced tab. what to do???
billOctober 5, 2017
Thanks, worked perfectly!
WormpowerNovember 25, 2017
One other setting that is recommend to be disabled/uninstalled is the SMB 1.0 under windows features.
DinoNovember 28, 2017
Many many thanks!!!!
steddJanuary 7, 2018
Many Thanks 😀
MashaFebruary 1, 2018
This only started two weeks ago after having good speeds for years. Thank you so much. I would not have found this without help.
Hieu taJuly 3, 2018
It doesn't work, someone can help me fix this, i set everything like this topic and restart but it can not improve the speed, it's still 1MB /s with my large file (70GB) copying to the other computer. I searched for increasing speed day by day, but i lost
This is my email, someone can help me by sending me a reply to this e-mail, thanks !
MaxJuly 12, 2018
O.M.G. Transfer that was at its fastest going 16MB/s and multiple times dipped down as low as 300KB/s suddenly shot up to 46.7 MB/s and stayed jammed there for the duration of the copy process. Amazing and thank you! And curses to the buffoons who invented it, who improperly implemented it, and who decided to enable it by default.
ALEX VINOTHSeptember 20, 2018
It doesn't work for me...
I wish to transfer 400GB files from Windows 7 to Windows 10.
I have tried the above-mentioned solutions..
Is there anyone have some good ideas?...
AltOctober 7, 2018
Thank you so much for this! I can't believe your first fix worked for me. My connection was literally taking 30 minutes per photo.
Thank you so much.
flownNovember 8, 2018
hey man, i know i am 5 years late, but i just had to use this tutorial and it really helped me alot, thanks
MichelleDecember 27, 2018
it kinda worked but only on the first few seconds then it hangs and then it drops to 400kbs... it's like it transfer a bit than thinks a bit wtc...
Robert PowersMay 26, 2019
Have same problem, can only get 6 or 7 MB through gb lan. tried all suggestions and none helped
lemoncurryJune 28, 2019
Fixed my issue w W7 LAN Speed, Disabled LSO, now get 65MB/s instead of 4MB/s
KateSeptember 7, 2019
Still relevant info - You're a superstar! Thanks so much for the post, this fixed our slow network speed while accessing our database 🙂
Vincent DuvernetOctober 14, 2019
You can add a last trick to test and can be useful :
Add source & destination folder to antivirus exclusion.
wasim shahzadDecember 5, 2019
Hey Brother, i am also facing same problem my transfer speed is about 1-1.5MB/sec......i just want 2 ask u that disableing ipv4 & 6 is enough?? To increase transfer speed
Ian McLellanJanuary 20, 2020
Here Is The Solution to Windows 10 Super slow file transfers, after Many Years, from 2013 to now (19 January 2020):
adminJanuary 20, 2020
Thank you for sharing such a detailed solution. It is very appreciated.
Adam LepczakJanuary 26, 2020
Thank you for the suggestion. Disabling realtime scanning/windows defender has solved the issue for me. We have just upgraded to win 10s and were experiencing slow transfer speeds from our workstation to poor Synology. I was blaming Synology, but of course - in our case the solution was to disable the Windows Defender. The issue was NOT related to anything networking.
Prakhar ChawdaApril 27, 2020
My self a computer hardware engineer. I have same query regarding network issues at my client's office.
My client wholesale dealer of medicine. For day to day business operations he is running a billing software.
This software (Visual Studio Foxpro) is installed in more than 3 to 4 computer including server computer.
The software runs with efficient speed in server computer but the problem arises when it is operated in other computer. It lacks sufficient network and speed.
Therefore, kindly suggest same remedial measures regarding above stated query.
Cassio L Z F FelippeMay 13, 2020
I've tried Disabling “Large Send Offload (LSO)” and it worked for me, thanks a lot!
JeffJuly 21, 2020
This worked for me media server settings was causing my video to lag and even drop occasionally. After disabling the LSO, not only did my video lag stop, but the audio quality greatly improved.
MCAugust 29, 2020
Works like a charm. Thanks!
yourhighnesOctober 22, 2020
WOW, i never thought it would work, I don't even need to restart my PC after disabling LSO. Thank you.
Sualdam MacSamildanachDecember 2, 2020
Just want to say thanks, even though this is an old article.
Plex has been driving me mad keep buffering. It was fine, then it started doing it, then it decided sometimes to do it, and then not to other times. Even an image slideshow would sometimes buffer when it was in a bad mood.
The LSO thing appears to have fixed it.
Sualdam MacSamildanachDecember 9, 2020
Just one small additional comment.
Although disabling the LSO appears to have fixed the basic issue, I have since discovered that it is possible a large or corrupted cache for the Plex app can also lead to issues.
I've watched several movies with no issues since applying the LSO fix (up until then it was a big problem). All of a sudden last night - in the last 5 minutes of a film - buffering started again. It was also immediately apparent when I tried it on another movie to try and figure out what was happening.
It was slightly different to before. Previously, when it buffered it never restarted. This time, it was.
I emptied the cache for the app and it's running fine again.
Shridhar maniraj.May 30, 2021
First of all thanks for your "crystal clear guidance".
I tried the all the method on both computer as you said except the that mythical one, the data transfer rate increased from 1 MBp/s to 9 MBp/s.
But, this rate is very slow for a modern cable. And how to increase it to 100MBp/s?
Thanking you once again.
Sualdam MacSamildanachJune 7, 2021
I eventually gave up and hardwired my connection, Shridhar.
Initially, I thought this had resolved matters, but they started again. I noticed that it depended on the movie I was playing - a 4k one required more bandwidth, especially during action scenes. Kill Bill: Vol 1 with the swordfight scene being a prime example. Wi-Fi just couldn't handle it.
I gave up with Wi-Fi and went for an ethernet converter for my Firestick. That fixed it completely.
I've since gone with a NAS and run my Plex server from there.
JamesJune 12, 2021
Guide on how to resolve a slow data transfer between a Windows 10 (Version 1809) workstation and a Linux Samba File Share using SMB.Issue experienced on a MSI Z97-G45 Gaming motherboard with the Killer E2200 Gigabit Ethernet Controller Driver and Killer Network Manager.Linux machine is a Debian 10.9.0 VM, sitting on HP laptop running ESXi.
radOctober 16, 2021
Thank you times a 1000! My transfer speeds went from 2GB in 20 minutes to 20GB in 10 minutes. Amazing.
slowpokeApril 27, 2022
Was having this issue in win10 with a choppy feed on larger movies from server to laptop. Turns out when I plugged in the lan thinking it was the wifi, the problem remained. I simply disabled wifi and my speed jumped to 12MBps from the dreaded 1.5. Cheers.