I have read that many people using ubuntu on the T5xx laptops are having issues with slow wifi, but my issues is slightly different. My laptop very frequently drops connections, or takes a very long time to connect in the first place. The speeds are fine. I have a lenovo T520 running ubuntu 12.04.
Things I have done:
replaced the realtek card with the intel 6300 - Much better range, still same dropping issue
Assessed that this problem does not occur in windows.
This leads me to believe the issue lies somewhere in ubuntu. Does anyone have any suggestions on what may fix this issue?