Comment 23 for bug 1000208

Since moving from 10.04 to 12.04 (via a clean install), I'm seeing symptoms similar to what's reported by the original poster. The WiFi connection frequently roams from one AP to another (even though the laptop has not been moved), and ultimately it fails to connect at all.

If I move to a different location in the facility, the problem goes away. Thus, I suspect it's a function of the relative signal quality of the various APs.

When the laptop is booted into Windows 7, in the location (my office) that is most problematic, the WiFi connection is stable.

My adapter is an Intel 5300 with the iwlwifi driver.

I have syslog's and other info if you want it. I can also experiment with alternative kernels and configuration changes.