Slow lan performance windows 7

First i realy want to thank you for this. 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. Even large files transfer in seconds. Thank you very much for sharing this info.

I'm sorry, I've tried all the solutions, unfortunately, my problem continues.. 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? 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. Worked great make sure not to forget the reboot. 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? Any ideas? Thank you sooooo much. Now I just need that fast speed out of my wifi. Is there a trick to that too? 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. I don't see Large Send Offload. HELP my speed is only a few kbps. 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. 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.

I appreciate you writing this up! It appears to be the answer to my problems as well. The only question is, I have workstation Is there any way for a Group Policy to be made for this so that I don't have to visit workstations? The Offload setting fixed my Windows copy speed! Funny though, if you use a different copy manager like TeraCopy, speed was pretty good.

This worked "like a charm Quote from "Santoxthanksyou" above "! Thank you 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. Thanks for posting this. 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. 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.

I tried all 3 options but the speed just around k. I tried to get into the network adapter setting and find the "Link Speed" is set to "mb Full Duplex", so I set to "1. Some time ago I experienced a slow connection when transferring large files. After I disabled large send offload on my networkcard killer e gigabit ethernet controller ndis 6. 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,. Thank you for the info. I really helped was struggling with slow lan for 4 days nothing helped but these changes made wonders.. Can't believe this. Saved the day for me. Thanks a lot for sharing the solution. I was transferring data over LAN between 2 laptops one of which is Windows 7 and another is Windows 8. I tried ll your suggestions to increase speed.

I just wanted to chime in and express my gratitude for this solution. Ah finally i found a solution! Starts of at or so. I tried these without much luck. Turned on autonegotiation and bingo. I think I might owe you something huge for this, but have nothing to offer.

This brings about the end of a very long-term frustration. Many thanks for this post. You deserve an award or something. 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.

I did the opposite. I enabled Jumbo Packets, the largest size. That fixed the problem. However, my case is special. I am downloading over a university campus LAN. If you have that service running, check this article on how to remove it.

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 kb or less. Very slow.

Check this article. It has quite a few suggestions on how to fix slow VPN speed. For years I struggled with slow speeds thinking that it supposed to be like that. Thank's heaps. It might help you steer into right direction.

For example, the answer has the following information about "Jumbo Frame" :. If users enable both of them, the driver automatically chooses Jumbo Packet. Now both directions work. What a stupid feature. 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. 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. 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.

Thanks for this article, though, I wanted the transfer speed to be above mb but it became better after following the steps provided in this article. Well anyhow thank you VERY much! This only started two weeks ago after having good speeds for years. Thank you so much.

I would not have found this without help. If you suspect that add-ons are causing slow performance, try starting Internet Explorer in Add-ons disabled mode. Add-ons are disabled only for the session, but if you find your performance improves, you can use the Add-on Manager to turn them off permanently. Like all computer programs, Internet Explorer requires a certain amount of computing power, memory, and disk space to run efficiently.

Every webpage you view is first downloaded to memory and then saved to temporary disk files. Running another program that's using lots of memory and computing power can compete with Internet Explorer and cause delays.

If you find your Internet connection running slowly and you have other programs running, try closing them.

If you want to run several programs, consider increasing the memory you have on your computer. Low disk space can also cause performance problems.

You can increase your disk space by deleting Internet Explorer's temporary files. Occasionally, settings get changed in Internet Explorer that could possibly affect how Internet Explorer works. You can reset Internet Explorer to its default settings.

Resetting Internet Explorer isn't reversible, so you should read the list of settings that are affected before resetting. Unfortunately, there are events and conditions that are outside your control. Even with a fast connection, external factors, such as busy websites or spreading computer viruses, can slow the entire web. Popular websites can become overwhelmed with users. For example, when a television commercial mentions a website, many people might try to visit the site at the same time.

If the website isn't prepared to handle the traffic, you might encounter delays. During times of heavy computer virus outbreaks, the Internet can slow down. Many viruses spread by causing computers to send out hundreds or thousands of copies of the virus. This can slow the Internet by sheer volume.

You can see what major outbreaks are currently happening by visiting your antivirus vendor's website, or the Security at Home website. Local Internet congestion can also result in slower-than-normal connection speeds. Note: the following is a long version of the story. If you want the short version, just the solution, skip to the last paragraph below. As I wrote before, I use virtual machines extensively to do work on my computer.

I skipped Vista and kept using XP, mainly because it did not seem like Vista would add any significant benefits to my host computer. However, a few months ago, Windows 7 became available, and while testing my products with it, I was so impressed with its speed, stability, the look and feel, that I decided it was time to upgrade my main host computer to Windows 7.

So, a week or so ago, after backing everything up, I took the plunge and installed a fresh copy of Windows 7 Ultimate. It went well, I was happy.

Of course the first application I added to it was Virtual PC , because I needed it to run my virtual machines that do the real work for me.

It went well, except for a few surprises, such as the new user interface of the Virtual PC console, that looked like a regular folder rather than a separate program. Also, it upgraded the integration components of my virtual machines and as a result it started using the Remote Desktop to display the virtual machine desktop.

It added the ability for the virtual machines to recognize the USB drives attached to the host, but at the same time it downgraded the display capability of the virtual machine to display bit colors only, that caused the fonts on the virtual displays not to be anti-aliased quite as nicely as before. Those were minor things, though, and after trying my virtual machines for a couple of days, I decided I could live with the new version of Virtual PC.

One thing did bother me, though: when I tried to browse the shared network folders from within the virtual machines, the browsing was quite slow. Literally, it took a few seconds just to navigate from a directory to a subdirectory. It was especially bad if the directories contained a lot of files. Please mention within details. No doubt, As Windows 7 is the most recommended OS, Which through user can do almost all work without any problem, Where I recommend you to activate your OS being purchased its license code from: cheaproduct Which is distributing license for almost all types of Microsoft Products.

I personally use it and have a good experience. One of my clients recently deployed Windows 7 across their network and are experiancing performance issues when accessing network resources involving MS-RPC calls such as network shares through the SMB protocol. It feels simlar to accessing the file server over a VPN connection with poor bandwidth and high latency, however in this scenario we are accessing the file server over LAN.

We tested a Windows 7 client on the same 24bit subnet as a number of Windows file servers on a 1gbps network. Slow access to network shares also occured over the same subnet. This issue is not driver related, I ensured to test workstations of different driver architecture including Intel and Broadcom network drivers. Workaround After researching into this issue we came identified two Windows components contributing to the performance issues. TCP AutoTuning enables TCP window scaling by default and automatically tunes the TCP receive window size for each individual connection based on the bandwidth delay product BDP and the rate at which the application reads data from the connection, and no longer need to manually change TcpWindowSize registry key value which applies to all connection.

Theoretically, with TCP auto-tuning, network connection throughput in Windows Vista should be improved for best performance and efficiency, without registry tweak or hack. However, this is not always the case, and may cause some performance related issues such as in our case.

The default auto-tuning level is "normal", and the possible settings for the above command are: disabled : uses a fixed value for the tcp receive window. Limits it to 64KB limited at It enables RWIN values of over 16 MB In my environment changing this from the default value of normal to restricted resolved my performance issues. It was introduced with Windows Server R2 and is included with later Windows client and server operating systems.

As of Vista onwards Remote Differential Compression is enabled by default. Diane from Microsoft wrote a blog post entitled " Debunking Myths about Remote Differential Compression and System Performance " where she states: A number of third-party blogs are telling people they can speed up Windows Update downloads, and file copy operations, by turning off the Remote Differential Compression RDC feature on Windows Vista.

If you disable RDC, any application that uses it will either not be able to take advantage of RDC or will simply fail. As a result I do not recommend disabling RDC unless you have an absolute need to. Please disable with care. Posted by Clint Boessen at PM. Unknown June 14, at AM. Unknown February 28, at PM. Anonymous August 9, at AM. Anonymous October 17, at AM. Anonymous November 7, at AM.