Sunday, December 23, 2007

Compaq Presario C500 and Kubuntu wireless networking fun

These instructions on the Ubuntu KNetworkmanager page got my Compaq Presario C500's Broadcom BCM 94311 MCG wlan interface back up and running after I fu-fiddled around with it this afternoon. I made the mistake of clicking the "Manual Configuration" option in KNetworkmanager, after which I lost all wireless connection, and couldn't find my way back out of the wireless woods:
  1. Made a backup of the file /etc/network/interfaces
  2. Delete all configuration settings in the file except the lo interface

    auto lo
    iface lo inet loopback

  3. saved the file then typed /etc/init.d/networking restart
  4. After enabling the laptop's wireless networking hard-button, the wired network reappeared in Networkmanager's Connection Status
  5. Also followed the instructions to enable the connection to survive suspend or hibernate, and bypass the keyring password at every login

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