I am trying to connect to my uni's public wifi in ubuntu. After an initial attempt that is usually successful, the connection drops after a few minutes (sometimes < 1). After that future attempts to connect may or may not be successful, but after a few initial successes I find myself completely unable to connect.
I had this issue with this laptop before. I ended up buying and installing a new wifi card and (if I remember correctly) installing the proprietary drivers for it, which seemed to fix the issue. However, after reinstalling ubuntu over the summer the problem has re-surfaced, and now I can't seem to find the proprietary drivers I thought I had installed when I last had this issue.
I do not have connectivity issues in windows on this laptop, so I'm pretty sure this is a software/driver issues
This is my wifi card's lspci entry:
03:00.0 Network controller: Intel Corporation Centrino Advanced-N 6205 [Taylor Peak] (rev 34)
and my lsmod: http://paste.ubuntu.com/6041598/
I tried implementing the solution mentioned here: Very slow connection on an Intel(R) WiFi Link 5100 AGN, which did not help my connectivity issues.