I have very similar behavior, happens several time during a day. It happen with 9.10 but it became more frequent with 10.4.The major difference with the original report that a successful connection is always established after reboot.
On some occasions both wireless and wired connection exist, but no ip is accessible. eth0 always restores normal operations as soon as I restart networking service (disable/enable through Network manager applet), but it doesn't help wireless connection could not be established, even though a network is available and signal strength is around 50%. After I tried to reload ath9k driver and I could reconnect, though it takes 10-15 seconds (is it normal?) Linux volvovski-home 2.6.32-22-generic #33-Ubuntu SMP Wed Apr 28 13:28:05 UTC 2010 x86_64 GNU/Linux 04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 02)05:00.0 Network controller: Atheros Communications Inc. AR928X Wireless Network Adapter (PCI-Express) (rev 01) dmesg is very similar to what was presented in the original report. Any other information you need? Thank you -- ath9k: Sometimes cannot establish wireless connection on the first attempt after login https://bugs.launchpad.net/bugs/549827 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
