Using my Acer Aspire 5750 at school my wireless connection speed will drop from around 4 Mbps to .30 Mbps. The speed will start out fine from startup and degrade over time. This happens only at school, and only on this laptop using this wireless card. My home network hold its 3Mbps down just fine.
My campus has two wireless networks, one is WPA enterprise encrypted and one is open, both exhibit this behavior. Using my network credentials on another machine or using a different wireless card this machine works fine.
I've updated to the latest driver and rolled back to previous ones. No help.
This is happening on a fresh install of Windows and on Ubuntu live CD so it is not malware or something along those lines.
Spoofing a different Mac address does not change this behavior.
The devid is PCI\VEN_14E4&DEV_4358&SUBSYS_E040105B&REV_00
It is a Broadcom Wireless N...
What could be causing this problem? Does the NIC not like the access points or vice verse? Are they any settings I should tweak? The drop in speed happens no more than 10 minutes after boot and occurs in both Windows and Ubuntu.
I should add that other students don't have this issue so it is not a network wide thing. Other students get around 4mbps down continuously. Using somebody elses credentials on this machine doesn't help either.