Public bug reported: Configuring network card via network-admin results in system hang on Ubuntu Dapper.
Step to reproduce: 1. Run network-admin 2. Choose GN-WP01GS wireless card 3. Click Properties 4. Enter settings (essid, wep-key, dhpc etc.) 5. Click Ok System hangs after clicking Ok. After booting iwconfig process takes ~100% CPU - killing or renicing process for some reason wasn't possible. To fix it wireless card must be removed from PC, then related entries deleted from /etc/network/interfaces after booting. Workaround and more info is present here http://ubuntuforums.org/showthread.php?t=132980&highlight=ralink (I think this is solution for any RT2561 based card). Basically (for Dapper) it involves downloading firmware, config file, fetching config file with proper data (essid, wep-key...) and than enabling network interface using ifconfig or dhclient. Sometimes additional steps must be performed like adding default gateway using route. Mentioned above workaround isn't 100% stable either. System still will hang if: - config data isn't valid (e.g incorrect wep-key) - access point settings are changed There is also a (random) chance that system will hang when running ifconfig/dhclient (with proper data) or few second after that. ** Affects: Ubuntu Importance: Untriaged Status: Unconfirmed -- Ubuntu hangs when configuring Gigabyte wireless card GN-WP01GS https://launchpad.net/bugs/54117 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
