Windows 7 slow wireless network transfer

I would suggest you to follow the steps on Windows 7 Laptop to disable auto tuning feature and check if it helps.

I hope it helps. If you have any issues regarding Windows in future please let us know. We will be happy to help you. Was this reply helpful? Yes No. Sorry this didn't help. Thanks for your feedback. I have a Desktop with XP and a laptop with Windows 7 which are on a wireless home network. The XP Desktop is physically connected to the router with an ethernet cable. The laptop connects wirelessly to the net and the Desktop.

However when I tried to wirelessly transferred a folder containing image files from my desktop to the laptop, the speed was about kbps. When I tried to transfer a mb mp3 audio file from my desktop to the laptop, the transfer speed was about 2 Mbps. When I then transfer an audio file from the Laptop to the desktop, the transfer speed was kbps! This thread is locked.

So I tested with a brand new Netgear router with a big green 'Windows 7 Compatible' sticker on the box. Went through all the setup got connected to the internet and sure enough the speed on the Windows 7 machines was still incredibly slow.

XP machine very quick connection. So I've tested 2 different wireless conenctions laptop and netbook and 2 different routers BT Home Hub and Netgear - all combinations have exactly the same problem - this is not a coincidence or an isolated case.

This is brand new stuff bought in and there is still this problem with wireless internet - the problems is Windows 7 - it seems incredible that this has not yet been fixed. Have looked on all the forums and search engines and there is no clear solution to this - why aren't Microsoft addressing such a fundamental problem??

This thread is locked. You can follow the question or vote as helpful, but you cannot reply to this thread. I have the same question Report abuse. Details required :. Cancel Submit. By contrast both cables between the server and workstation I benchmarked at the start of this thread plug directly into my router.

In my case I did perform basic network trouble shooting and all succeeded. Ping is less than 1ms, no lost packets with IPv4. Now that being said my case turned out a whole lot more interesting that may help or be a red herring As the system was going bad 1st lost USB ports, then boot then hang, not boot, etc I did a quick checkdisk when I had a good boot and no problems for the Intel raid controller reported no problems. Now I re-setup the PC with new raid arrays in the same formation on these same drives and was trying to copy back the backups to restore them which started the networking problem.

Now the quirky part So I retried HDDTune with full scan, cool drive all ok but hotter drive had first few blocks ok but then fail til next 2 rows. Ah Ha! Potentially part of page file was corrupt so windows problems in old system build and when I rebuilt the drives to be clean the copy was fine until it reached the bad blocks.

Found it, so I thought. Now the interesting part My computer parts supplier didn't have 2 new 2TB HDDs as I was going to Raid 1 them this time, but that can now wait until the other drive arrives so I only got one.

So now I've got the backups restored to the 2TB and all looking good. Problem solved, but for laughs I also try again to the old MBR drive that past all the tests and it starts then stops?!?

So right now I'm in the middle of running all the full low level test on that drive again, but nothing is failing so far. If it passes I'll repartition it to GPT and try the copy again. If that works I'll report back, but has anyone else found any differences between the partition types under Win7x64 relating to the ability and speed of copying?

So after a half day performing all types of low level disk checks, the drive is reporting good so I repartition to GPT, formatted it with the defaults for NTFS and try the network copy again. Guess what the result is?

It works!?! But there is always a but now I've got the slow copy problem My setup is as follow. Cisco e as the only switch. I have 3 computers wired to, and two more over wireless. Three wired computers are 1 Windows 7 64bit, 1 OS X I just recently upgraded the Windows 7 box. New motherboard, processor, RAM. Re-installed windows, and since this, I have had the network issues.

I've tried everything I could find on line, but nothing has helped copying a file from the Windows PC to another box. Reload windows from previous build's image and update drivers for the new motherboard to see if something went wrong with my latest windows install. That should at least tell me if it is a Windows 7 issue, or a hardware issue.

Other than doing this, I have no idea what might be the problem. Sorry to leave you but I've solved my problem through network driver update, but not from the expected source. I am transferring about 50GB between some backup files and its taking forever If your data is transferring through a megabit link, then 10 megabytes per second sounds about right.

I've had the slow transfer issue with Win 7 and went looking for solutions online. I came accross the old thread started in and read that, which of course led me to this thread. My network is very simple, 1 Win 7 Desktop and 1 Win 7 laptop connected via Wifi to a broadband router. I cannot try the frame size fixes suggested as my adaptor doesn't have these options it may be possible by regediting but I have't tried that yet.

It seems to be however that fiddling with frame sizes shouldn't be needed. This test led me to the overwhelming conclusion that the culprit is the windows file sharing system itself, Samba. So to that end I started doing some deep research, investigating and network sniffing. I have now found exactly what is causing the problem.

It's to do with packet clustering and timeouts. Starting from according the reasearch I found Windows Server A network optimization system was introduced by default. This system is designed to optimize network throughput and persistance by "queuing" packets so as to send more packets in 1 burst. Windows TCP stack basically recieves a request to send a packet, the TCP stack holds this packet for a short time to see if any more packets arrive for transmission.

This allows it to send 1 big "burst" of data in 1 go rather than several smaller ones. Now this is all well and good on TCP connections as the error control and acknowledgements are handled at a deeper level. All error control has to be done by the implementing application, and THIS is where the problem arises. When windows attempts to send a file across file sharing, it sends it via UDP, each UDP packet requires an acknowledgment from the other machine before the next packet is sent.

This seriously slows down the entire process because UDP packets are being queued and not acknowleded quickly enough by the recieving machine. I am currently trying to find out how to disable this packet queuing system, which should completely eliminate the problem. I wonder why it would work on some setups and not others.

Maybe simpler networking - e. I'll be interested in hearing whether you've been able to verify that this feature is indeed the culprit, and especially whether you find a way to disable it. This is a summary output for a file transfer tool I wrote and shows XP machine 10x faster than the W7 to tranfer the same files across the same network devices to the same location.

I would suggest this points to a W7 issue. The files transferred are 24 'junk'. I can supply a more detailed break down of the transfers if anyone wants them. We have been fighting against slow network performance for several months at the office and finally nailed it down. In other words:. Network sniffing showed packet loss, retransmissions and time-outs. We suspected every component and ran through the scenario depicted in this thread:.

The problem was finally solved by Quite surprising. Not sure why but problem solved A lot of these "slow transfer" issues seem to involve some kind of non-trivial networking hardware between machines, while bridged same subnet operation seems to be more likely to be fast.

This is quite the conversation.. I have been monitoring many threads with many people affected by this. Come on MS why cant you help us poor buggers out! I admire your efforts to get this resolved, but other than asking more questions and recaping, I havent seen any concrete soltutions at all from you. Not quite sure where you are going with all of this. You have the closest observations to what I have noted..

I am a network admin for hire in a community of , people. I have been a MS certified tech since 97 and work in the treanches each and everyday on computer issues ranging from my desktop is the wrong color to VPN connection and AD issues.. I have a hotel i have serviced since starting with NT 4 and working up thru the years to differnet server versions, differnet ws versions and all has been fine up until nov when one of the staff responsible for social media updates for the site had her XP pro computer replaced with a windows 7 pro tower.

Each user onsite has a dedicated user folder on the windows standard server onsite. Her folder has something like 50 folders in it. Perhaps a total of mb of mostly doc and excel files.

Just opening her mapped drive in "my computer" results in the background of the address bar showing a green progress bar slowing going left to right over 45 seconds there abouts - just on browsing of folders!..

I even rebooted the main network switch with no fix. I read tons of documents as I am sure we all have and followed a thread which I cannot find now for the life of me!! Two months ago I setup a net network for a church. Four computers total. One of these computers is a windows 7 pro workstation with basic file sharing tasks.

Another is the bookkeepers workstation.. Same thing with her Simple network with all hardware connected directly to new linksys E model router. Yesterday called back to a fully windows 7 home premium installation which was relocated from one building to another.

Everything is the same EXCEPT a new router, patch cables and possilbe some workstations are plugged into a switch then router, instead of router then switch. Slow simply accounting load from windows 7 home premium server to 7 home premium client.

SA times out half the time. Same regisitry change on both affected computer, reboot both and its been golden. They have reported no issues in speed whatsoever. I do believe I have this fixed as the three locations with this issue initailly is not reporting problems anymore. Hope this helps and I can recap other attempted fixes on job one if you require would have to dig to get this info however as it was a few months back and most of it didnt work!! I was involved in a conversation prior to the creation of this thread about slow network performance.

I figured I might be able to facilitate discussion on the forum that might uncover a solution, as I don't seem to suffer from the problem. I'm sorry that no perfect solution has jumped out and bit anyone yet, but you'll note I got VLCC and you to post a promising tweak in this thread! It would be nice to hear back from others who have tried it to see if it has helped. Notably I don't have this value defined.

As with many of Windows' difficulties, the system is so complex that not always does a simple fix correct everyone's problems. At least one poster above has mixed up bits and bytes, and VLCC reported this fix didn't help him as it did you. With some luck, it may help some others.

Thanks for adding your experience here! Just for reference, since your shorthand may confuse some folks, we're talking about adding the following DWORD value to the registry and setting it to I switched to Windows 7 Ultimate Sometime later I noticed my speed dropped considerably.

Not sure if it started as soon as I installed Windows 7 or later. I went through the original forum very carefully and tried many things suggested to no avail.

So I gave up for a while, until my NetGear Gb switch died. This is a nice switch and the best part of it is that it tells you what each port is seeing as far as speed. My server was a solid 1Gb for both of the Intel pro MT adapter ports. However, for the Dell workstation running Windows 7, it showed only Mbps speed which I verified when I looked at the Status page of the connection properties.

So not only was I not getting the the Gb speed when it showed 1 Gb but now the speed being negotiated was set at Mbps. I noticed that the MT on the workstation side had very old drivers and they were the only ones available at the time for it, so I purchased a ProSet Desktop Mb CT adapter which had drivers. It was a struggle to get the Intel drivers to override the Microsoft provided ones. However, I found a way to do that. After I uninstalled the ones from microsof and trying to install the Intel version, there was an option not to install the default Microsoft ones only on windows 7 and not on windows and instead allow the install of the Intel ones.

The drivers intalled fine and I finally got the tabs provided by Intel ProSet drivers that allowed you to change the default link speed to 1Gb.

I should note here that when I used the connection property advanced configuration to change to 1Gb, the connection would disappear and not show at all until you changed it back to auto negotiate. But using the Device Manger ProSet options link speed tab to change the link speed I was able to do change the link speed.

The ProSet drivers also included a utility to test the wire and the connection which finally gave me a clue. It told me that the new Cables to Go Cat6 cable was missing 2 wires that would allow it to go to 1 Gb speed. I changed back to the Cat5e that I already had and sure enough, I was able to set the link speed to 1Gb. So at this point I was all excited to see the old Mb file ccopy speed.

At first I was really puzzled because the highest speed was 12 Mbps. Thinking a bit about this, I got an idea to disable the internet nics I have 2 nics for each machine: 1 that goes to a Mb Switch which leads to my internet connection and my other nic which is dedicated to the internal Lan at 1Gb.

When I did this the speed jumpted to approximately 30 Mbps. So amazingly, for some really stupid reason, windows chooses the slower link to copy files from one machine to another by default Anyway, so although I've found a way around the Mbps speed that the connection was being set at automatically, I'm still way slower than I want to run the connection between the computers.

I hope this helps anyone who might be having the problem of not being able to set the connection speed to 1Gb, but I'm still trying to figure out why I can't get to the very fast speeds I was used to on VISTA.

I'm willing to bet that this is the work of one of the genious Microsoft updates. I'm not sure what they've done but they are being awufully quiet about it. I'd like to make the request that folks posting here describe their actual throughput results and spell out the terms they're using clearly especially the difference between bits and bytes. It would be best to explicitly describe the file size s , how many files, and how long it takes to do what operations.

For example, romelevans, what does "about mbps" or "12 Mbps" mean in your post above? What are your actual and expected file transfer rates in bytes per second and how are you actually copying those files across your network link? As I have shown above, it should be possible, with everything working optimally, to get close to the theoretical maximum at around megabytes per second transfer rate across a 1 gigabit per second Ethernet link. Exactly how much degradation is important to this conversation, and we need to try to avoid confusion over terms.

Would like to try this with my Win 64 bit. I have the same problem with large file transfers by WiFi in Windows 7 64 bit. Looks like something is wrong not with hardware or drivers, but with network settings. What can it be? My network system suffers from slow transfer speeds. When I first installed gigabit cards it worked well for a while, but then slowed. Desktop system is Windows 7 Dell Core 2 Duo 2. Right now the gigabit cards are removed; just using fast Ethernet.

I set the DisableBand w idthThrottling to 1 in registry. Just now I put in that registry setting on the Home Server and file transfer speed doubled! Two windows 7 professionals, connected to a gigabit switch with cat 6 cables. Firewalls disabled. No AV software, or "internet protection" crap. Speed is not a factor while doing anything from editing huge photoshop files to loading enormous files in 3D Studio Max, and while copying data to USB devices is slower, it is not unexpectedly slower.

Given the horrifically excessive timeline of this issue, and taking into account the lack of any solution whatsoever, and seeing on a daily basis that my internet transfer speed is devastatingly faster than any internal intranet transfer, there is only one logical conclusion; Windows 7 is intended to behave this way and Microsoft has no intention of fixing it.

I am extremely disgruntled over this and even more put out by the clearly deliberate ignorance by Microsoft. I really do like Windows 7 but not being able to efficiently transfer data around my local network is SO bad that it eclipses many of the positive points that Win7 has brought to the table.

I am subscribing to this thread in the vain hope that someday, somehow, I will get an email notification saying there has been a breakthrough and we can all move on from this ridiculous problem. Please try the examples given but if you don't have the right switch then it won't matter what you do at the OS. So you're saying that switches other than these specific models can be expected to slow things down?

I can believe that; without going back and scouring these threads I'm not sure we ever definitively identified anyone without a switch that was seeing a big slowdown. For anyone following up on this thread: Please list what Ethernet switch, if any, you have between your systems.

I just installed a Win7 64bit machine and had the same problems of copies across the network taking forever.

So we bypassed this switch and everything copied across the network at expected speeds. However, I am trying to figure out what I can buy locally at Microcenter given I have to install this soon.

The port is shared by several printers and computers. We only need an 8 port switch. Update: Regarding the above switch I mentioned, Cisco SG D, I asked someone I know if he thought this one would work, and he said yes, that he has this exact model installed in several places and is running Windows 7.

So I will give this a try and post my findings here. From my tests yesterday it certainly indicated an incompatible switch it was definitely an old model with Windows7 64bit. From the findings of this thread, it appears that the switch should be the first thing tested in terms of large data transfers - i. I guess it makes sense; certainly the evidence is that in a number of cases the intervening network hardware e.

It is quite a lot of data we're trying to transfer e. It's not too hard to imagine an implementation of a switch that just can't handle the data at full speed - though in this day and age you'd think being able to run at the full wire speed ought to be a fundamental design goal.

Win7 just can't do proper file transfer Wired or wireless LAN, copying bunch of CAD files files, each about 3Mb , transfer starts ok and completely stops after files. Wired LAN on the bench single switch etc. Just a crossover cable between a Win7 and XP machine no switch , and file transfer is still slow.

XP to XP works like charm. External USB2. When one of them eventually finishes, rate of second transfer never never goes up to utilize bandwidth. I tried bunch of different machines and OSs, but only Win7 can't perform. I agree that ethernet switches etc as any part of path need to be evaluated.

Even machines using dual boot same NIC, same cable, same switch have no problem - unless running Win7. Like everyone else I would like to see this resolved. So yes, go ahead and look elsewhere if you like, but the problem is not elsewhere, it is within Win7.

In fact it did not exist until Win7 was released so if there is something incompatible, it is Win7. I have yet to find a switch that didn't have this problem. Just to be clear, have you been able to create any configurations where it runs at full wire speed without a switch as I have?

Almost hard to believe that Windows 7 networking just can't work with a switch in the line, but that seems to be the implication so far in this thread! I should think enterprise users would be raising a bigger stink if that were the case. I guess enterprise users have bigger budget and more leverage.

This thread was continuation of a previous one that was closed after it grew out of proportions. In three years, despite plenty of feedback, there was not even a hint of getting anywhere closer to solve this mystery. It does not take much to reproduce the problem. I'm not sure I understand that comment You're thinking they can buy more expensive switch hardware with which Windows 7 somehow does work?

I was thinking that maybe that corporate drone users are often just too "Wally-like" to realize they're not getting all the bandwidth they can? Hey, if it takes long enough to copy a file that a guy in a cubicle can go get a cup of coffee, maybe he doesn't complain much I know, I continued it.

I've been following them for years. But while clearly this issue isn't rare , I'm not sure a few hundred forum posts constitutes a majority of users. It might; I don't know. You just don't see a lot of folks go online to complain that "it works great for me". Can others reading this please confirm whether they do get full wire speed from Windows transfers? I'm especially interested to hear if anyone is doing so with an Ethernet switch in the network.

It took only a few minutes to install. I think the main thing is to get a real new model, though I am not certain that will work in every case.

Sorry this is not more technical, but I can say that the difference between this new switch and the old one I mention above is utterly different - the old switch being painfully slow and would sometimes not finish a larger copy of files and the new one being nearly like saving to a local hard drive. Edit: I was reading the model off the receipt and it was wrongly printed there.

The switch that is working fine is:. So what you're saying, if you'll confirm my summary, is that you saw network slowdowns with Windows 7 systems, changed out an Ethernet switch to one that apparently handles high speed traffic better, and now the previously slow systems are getting full use of the wire speed? It's hard to imagine that this could be the entire issue people are seeing here, since one wouldn't expect an Ethernet switch to have awareness of what version of operating system is generating the packets, unless Windows 7 is generating something that is within spec but just was never seen in the time of earlier OSs, and somehow that new something isn't being handled correctly by older switches.

Yes, the improvement was like night and day by just changing out the switch. Nothing else was changed and this includes cables and anything about the machine that is running Windows 7 64bit. However, I cannot say this unequivocally " It's just that the old switch was not usable in terms of any sizeable file transfers or copies because it was way too slow - whereas the new switch performs as I and the multiple users would expect it to.

The next time I am at this client site I will do some measurements in terms how fast the copies actually take now. Maybe because it runs fast enough, it seems fine, but it is still not optimal. Unfortunately, the building is only using Cat 5 or maybe Cat 5e cable, and I believe the cable to the switch is Cat 5.

Will check this too. To also clarify, it is the only Windows 7 64bit machine on the system and the only one that anyone complained about in terms of a slowdown.

However, most other users are mainly doing small file transfers, whereas this new machine is for media processing and involves a lot of large file copies. Furthermore, the prior media machine ran XP and, though very slow hardware-wise the reason it was replaced , it did not suffer this horrible speed issue in terms of file copies over the network with the old switch, at least no one complained about that aspect of it.

I've been keeping up here and everywhere since the dawn of Windows 7. I loved XP pro, but 7 even more, hated Vista, go figure. Point is, since the dawn of Windows 7, I've used many, many, many different computers with it, not just mine, you see, I fix computers for a living and have done so for 14 years albeit I admit I am not an networking expert or at least, not as in depth in that field as I am in hardware itself.

That being said, I've had to run and transfer files on my network for other systems, many using older mb, not gb nics, I've used computers that at the time were top notch, computers right NOW that are top notch. I've gone back to XP pro to use as my backup PC for peoples' information because despite years of trying to get Windows 7 to transfer 16 gigs in less than a days time has been futile at best.

I could go over all the configurations, I could go back and call everyone who I know personally with this issue and still not be able to solve this, I could hash what's been hashed throughout this whole thread but let's face it, after all these fixes and tweaks and possible solutions, it's Microsoft who has failed to come forth and do something about it. While I do like Windows 7 as an OS, it's got issues man, mainly in any type of file transfer. XPpro is outgunning my Windows 7, 50 -1 with file transfer rates over the network or backup machine.

I've been through wireless, cat, everything. I truly applaud everyones' efforts to find a solution but I think deep down, we know it's the darn OS. Doesn't mean we should quit trying of course because if MS won't do anything about it, someone has to.

One would have to ask why such a ridiculous task is needed to share files over a home lan. I found that 3rd party software like Lanshark helps as well, it does speed things up, again, hardware issue? I too tried over an XP virtual, improved greatly. It's Windows 7 MS, do something about it. BTW, great discussion to all the poor buggers here trying to help, kudos and I hope you find after all this effort a good solution, if not a merit badge from MS. EDIT: I want to note: Shut off the search in the programs and features, also, I shut this off on any system that had it, only way it sped anything up.

If only one system running Win 7 has search on, it doesn't work, at least for me. I can get the model if anyone is interested. The harddrives are just 2 Seagates: 1. Anyway, not super-fast but also not an issue in my day-to-day operations. It was also about 20, files, so that slowed it down too. I don't remember getting better performance than this with an XP machine, although admittedly, if it was going fast enough, I never bothered checking the actual speeds.

Also, I have not tweaked either Windows machine in any way nor the one at the client site I mentioned above, and which I plan to be visiting tomorrow. So should I be getting much faster copies? Other than the switch problem mentioned above, I haven't noticed anything that really annoys me about Windows 7 64bit in this area thus far.

No, you shouldn't expect too much more Just got some news today, our local college computer science building who is running Windows 7 on all systems now, brand new Dells, quad cores in all, 8 gigs ram in all, new switches and servers is having trouble with the network. Students complained today that accessing their student drives is too slow, it's taking most of the class time for a mb file. The network instructor whom I've known for years and highly certified is saying that sharing or grabbing any file is so slow, they are ready to load XP pro back on.

When I was told this today, I had to respond back here. I then tried numerous tests on my network today, nothing helped plus went to wireless, no better, no worse.

As usual, to transfer a 90 mb file into a shared folder, it starts off at kbs, then down to 26 kbs, then near nothing. I've got all different systems, router, etc An interesting tidbit of information, when trying to file share with wireless, it knocks the internet connection to nothing. I have 20 meg service. TEST 2: I ran two boxes, not real high in resources, one a simple HP pavil, 1 gig ram, other is a gaming box but older, radeon, 1 gig ram, hd wd, nothing fancy, both have XP pro.

Guess what? I threw a 90 mb file in the share between them, done in seconds. Wireless not cutting out when sharing, everything is spec. It goes against my grain to say this, especially since I'm security minded but I am so ready to go back to XPpro. I depend on fast connections, Windows 7 has been extremely disappointing in this area.

Back to using the XP box for transfer and backup I guess. Not that you should be having these problems in the first place, but reverting to an outdated system is not going to keep as a viable solution.

You should continue to seek solutions. You speak as though "Windows 7 is like that", but it definitely does work for some of us.