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Windows 7: Wi-Fi always disconnects after 1 hour of connection to a Wi-Fi hotspot

28 Feb 2013   #1

Windows 7 via Bootcamp
Wi-Fi always disconnects after 1 hour of connection to a Wi-Fi hotspot

Currently don't have the laptop with the problem on me, so can't post info requested on Networking Posting instructions, sorry. However, here is the problem I'm having; hopefully someone could point me in a right direction.

Mid-2011 Mac Book Air, Model A1369 EMC 2469.
Here are it's specs:
MacBook Air (11-inch and 13-inch, Mid 2011) - Technical Specifications
Unfortunately, Apple is so bad that they don't provide exact build specs even for the serial number itself, nor do they list actual hardware components.

Middle to bottom of this page may have a bit more spec info, but still no actual hardware components info, unless one checks them on the laptop itself (which I won't have access till I'm there)

Wi-Fi always disconnects after about 1 hour of connection to a Wi-Fi hotspot under Windows 7 via Bootcamp.
These Wi-Fi drops happen in every hotel we tried so far. My guess the time when it happens should be around 3:30pm EST on average.

Works without drops when connected to same Wi-Fi hotspots in OSX.
Even works in Windows 7 when using our own Verizon 4G mobile hotspot, model MIFI 4510L. But again not the hotel hotspots/routers.
Loses Wi-Fi connection after about an hour when on regular Wi-Fi (via router/hotspot). Happens on different Wi-Fi networks in different places -- same problem.

Steps undertaken:
Checked online and saw lots of people having Wi-Fi disconnection problems in Windows 7 on Mac Books (Pro and Air). Also saw people having lots of disconnection problems with just Windows 7 (without a mac).
No concrete solutions found so far though. Any pointers?

Things to consider:
What makes Verizon 4G hotspot so different from the hotels? Is it protocols? Different encryption? Something else?
Obviously we can't change settings on the routers (as they are hotel's and are different in every place). We can only change something locally on the laptop itself.
I have very limited amount of time to apply any fixes I can think of. About 1 hour; 1 and a half max. I know that it's not best for trying to troubleshoot it, but that's all I have now.
Laptop may have Hide My Ass Pro VPN installed. Can't verify at the moment. OSX has it for sure. Windows side -- not positive. But switching it off will be the first thing I'll try. Can it interfere?

What steps to try to undertake and in which order.
List of all the things it can be.
Any way to monitor the connection live and see what caused the disconnect? Say a live or recorded log of network card and router communication? With the data traffic filtered out? Can Wireshark do that? How to use it for it then? Can SysInternals suite be used for that? Any other special tools?
Any help would be greatly appreciated. And I'm sure -- by many, if what I've seen is anything to judge.
Reinstall drivers? Any better drivers available for it? The Wireless card is called Airport officially. But if remember correctly it is: Broadcom BCM43xx. Maybe there is something more stable for Win 7 out there for it?

My System SpecsSystem Spec


 Wi-Fi always disconnects after 1 hour of connection to a Wi-Fi hotspot

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