Exact same problem with a Thinkpad X200s.
# lspci 03:00.0 Network controller: Intel Corporation Wireless WiFi Link 5300
# uname -a Linux thinktuxhaus 2.6.31-20-generic #58-Ubuntu SMP Fri Mar 12 05:23:09 UTC 2010 i686 GNU/Linux
Using WPA for network encryption. Wireless will disconnect rather suddenly, and nothing will rectify the problem except for a reboot.
Exact same problem with a Thinkpad X200s.
# lspci
03:00.0 Network controller: Intel Corporation Wireless WiFi Link 5300
# uname -a
Linux thinktuxhaus 2.6.31-20-generic #58-Ubuntu SMP Fri Mar 12 05:23:09 UTC 2010 i686 GNU/Linux
Using WPA for network encryption. Wireless will disconnect rather suddenly, and nothing will rectify the problem except for a reboot.