Ubuntu
bcm4400-source package

  1. Bug #201202
  2. Comment #14

Comment 14 for bug 201202

Revision history for this message
Tim Wright (timw) wrote : Re: WiFi roaming causes NetworkManager to lose routing

I don't know if I have the exact same problem, but on Hardy with the latest updates, NM is still unusable on my laptop. I have to APs in the house, both with the same SSID. Sat in the family room, the signal strength is similar from both and the system wants to flip-flop. EVERY time it does so, it breaks all my connections. This works flawlessly under Windows on the same machine, sigh.

The APs have no security on at the moment (just a MAC address filter - there's nothing important on the network). Here's some sample output from /var/log/daemon.log:

Oct 6 16:09:32 timw-laptop NetworkManager: <debug> [1223334572.791447] nm_device_802_11_wireless_update_bssid(): Roamed from BSSID 00:13:10:69:D1:29 to 00:0F:66:92:6A:9C on wireless network 'splhi'
Oct 6 16:13:42 timw-laptop NetworkManager: <info> Supplicant state changed: 0
Oct 6 16:13:42 timw-laptop NetworkManager: <info> Supplicant state changed: 1
Oct 6 16:13:42 timw-laptop NetworkManager: <debug> [1223334822.839332] nm_device_802_11_wireless_update_bssid(): Roamed from BSSID 00:0F:66:92:6A:9C to 00:13:10:69:D1:29 on wireless network 'splhi'

As I say, EVERY time this happens, it drops my active connections (e.g. scp gets killed). This is on a Thinkpad T42 with ipw2200 wireless.