I give up. I am not sure what causes the problems. It is a fact that: - in some kernels I didn't notice the problem, which led me to conclusion that the kernel is to blame; - it behaves identically on more than one computer; - I was not able to reproduce the problem on another WIFI network.
I guess it some strange combination of WIFI adapter, driver, kernel, access point, etc. I got myself a WIFI adapter with other chipset than rtl8192cu and it works now. Unfortunately I got two rtl8192cu dongles because I thought the first one broke when the problems start to appear. After I bought another one I realized that the old one is OK. As far as I am concerned this bug report can be closed. Thanks for all the help. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1453028 Title: Kernel drops connection with rtl8192cu fixed driver To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1453028/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
