Comment 5 for bug 1444226

Xubuntu here, wireless has been working fine over multi distros and years on this machine, just ran the 15.04 upgrade last night.
Now I have exactly the same problem: initially connects but drops almost immediately and can't reconnect, completely unusable.

$ lspci |grep -i network
04:06.0 Network controller: Ralink corp. RT2561/RT61 rev B 802.11g