I made some testing with this problem and I wrote script to enable rt61pci wifi connection temporarily.: rmmod -v rt61pci rmmod -v rt2x00mmio rmmod -v rt2x00pci rmmod -v rt2x00lib sleep 1 modprobe -v rt61pci nohwcrypt=y
After I ran that script is started pinging some random host for awhile and connection stayed up as long as ping was running. After I stopped pinging, wifi disconnected in 1-2 minutes and couldn't connect any more. One line in syslog was interesting: kernel: [ 4129.010595] ieee80211 phy6: wlan0: No probe response from AP 02:1a:11:fe:c8:19 after 500ms, disconnecting. Linux lagopus 3.19.0-15-generic #15-Ubuntu SMP Thu Apr 16 23:32:37 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux ** Attachment added: "Part of syslog when connection went down." https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1393744/+attachment/4384835/+files/syslog.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1393744 Title: 1814:0301 RT2x00/rt61pci disconnects since update to 15.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1393744/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
