Uploading to Gmail using https makes network stop working
I installed Windows 7 64 bit on a computer on which I had Vista before (not an upgrade, fresh install). I run into a very strange behavior: when I upload a file to GMail using https, either using IE 8 (x86 or x64) or Firefox or whatever, the network stops working (I mean that neither the router can be reached) and I have to reset the network card in order to restore the connection. Uploading the file using http works perfectly. I tried also uploading to other sites and it works good. I don't know of any other https site to upload a file to. I can remember that under Vista I had no problems uploading files to GMail on https. I have an Atheros L1 Gigabit Ethernet controller on an ASUS P5B-E motherboard. Drivers are the latest available (2.4.7.29, released 10/13/2009). Why does this happen?
November 6th, 2009 1:48am

Hi, Here are some suggestions you can try: 1. Since you can upload files on other website, we can conclude that Internet connection is fine. I suggest you upload files using Https on another Windows 7 machine for a test. Does the issue persist? 2. Temporarily turn off the firewall and antivirus program on the machine to check the result. 3. Bypass the router and connect to DSL modem directly via wired cable. Then please upload a file again. What's the result? Thanks, Novak
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November 6th, 2009 9:38am

Thank you for your reply Novak, I can't try point 3 because DSL modem is built in in the router. As regards the other two points: 1. I tried on a notebook with Windows 7 RC 32bit which is connected to the same network using an Intel Wireless Card (2200BG), with Windows Firewall enabled and the file is successfully sent. 2. I disabled windows firewall and MSE, but network still crashes. So it seems that the problem is connected with the specific network adapter or its driver for Windows 7 (maybe because it's 64 bit version?), but why an https connection can make the network adapter stop working? Moreover the same network card worked under Vista 32bit. Thank you for your help, and sorry for my poor English Matteo
November 6th, 2009 12:59pm

My Network has been failing and ithas been happening forabout a month or soon Windows 7 x64. I dont think that the system configuration is the problem as it is happening on 2 seperate machines. One being a relatively beefed up "white" box, 4 gig OCZ ram, EVGA N79 Mobo, Q9600 Quad core processor, dual raid 1 -150 Gig Raptors, 2 8800GTX SLI cards, Pure Power 800W PS. The second machine is an IBM Netbook S10. I use the Netbook as a media center connected to a Pioneer Elite 1050HD. One thing is I have a PS3 and have several 1TB Esata drives connected to an IOGear 3132 Esata 3.0Gb pciX card to my desktop.My typical usages:1. FTP from a private server2. Streaming music via Winamp3. Streaming video 720, 1080 from pc to PS3via the PS3 Media Server4. DLing demos or movies on the PS35. Network streaming a movie from the Esata drives to the bedroom or kids rooms6. Streaming video from abc.com or southparkstudios.com from the Cox cable modem7. RDC over VPN to work machinesNow I have noticed that when I am streaming HEAVILY, from any 2 of the above mentioned, my network connections will simply stop working with a yellow exclamation mark on the task bar network icon after a few moments, nothing in the event logs, no logs or ANYTHING at all. It will simplystop working no notifications or anything poof, gone. I have EVERY single patch, driver anything I can think of installed. Nothing works, the timing is completely random. FYI I have a NETGEAR ProSafe VPN Firewall FVX538 with a cable modem connection on WAN 1 and a cellular connection on WAN2, these have no impact I feel on the connections because the PC may go down or the Netbook will go down depending on which one has the most load. So this simply tells me that it it not a firewall router problem as I have tried using a cisco unmanaged 24 port 1GB switch and I get the same problems. From analyzing the systems and layout I am led to believe that it is either a network adapter driver OR a Windows 7 problem (collisions, unhandled exception?), this NEVER happened with XP or Vista. I have tried everything but a new network adapter, I have tried the secondary adapter card on the mobo, I have tried bridging the two, I have tried daisy chaining the switch and putting each machine on its own dedicated switch linked to each other with no change. When the network goes down it is only that box effected, all other machines still connect to each other fine, only the one with load shuts down and the only ones that shut down are Windows 7. These machines are all wired with commercial cat5e patch cables, they have all been swapped for new ones lately. All networking and PC equipmentare on UPS so I doubt voltage variations. Windows Firewall is disabled I only use the hardware firewall, I do not use any antivirus.I am completely out of options, can anyone recommend a new route?
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November 9th, 2009 1:35am

I have the same problem when using gmail. I also had Vista before then upgraded to Windows 7 ultimate. I have tried several suggestions in this thread and others but nothing seems to work. Still looking for a solution.
July 6th, 2010 11:25am

I have exactly the same problem. Tried the suggested above didn't work. I also have windows 7 and the network only crashes when using GMAIL (GOOGLEMAIL) to upload any type of file. THe network is fine when using other email services. My Network crashes. Internet disconnects when uploading a document using GMAIL on Windows 7 (32 bit) so the fact the above comment mentions 64 bit does not seem to be the real cause. I am still looking around. Please! Please! if you find the solution to let us know ...... It is getting really frustrating :(
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August 2nd, 2010 6:56pm

The solution is to turn "task offloading" off for your network card. read here: http://www.baba.se/2010/11/in-windows-7-https-uploads-stop-network.html
November 22nd, 2010 3:47pm

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