Here is dmesg file. Nothing gets written to syslog on this issue. I think I might be mistaken on xubuntu 6.10 having the exact same issue. Most of the time tonight I was able to close Firefox without losing connectivity but can easily reproduce the problem if Firefox crashes or I kill the process. xubuntu 6.06 I had the problem every time Firefox closed.
Here is dmesg file. Nothing gets written to syslog on this issue. I think I might be mistaken on xubuntu 6.10 having the exact same issue. Most of the time tonight I was able to close Firefox without losing connectivity but can easily reproduce the problem if Firefox crashes or I kill the process. xubuntu 6.06 I had the problem every time Firefox closed.