I have the same problem - running mandrake 8.1 (redhat);
also running p2p wireless;
my system works fine for awhile; then after some time; I start getting this error.
I've tried shutting down the ppp connection & restarting (shutting down firewall/forwarding & restart)
this doesn't make the problem go away.
I've even tried going into single user - and back into multiuser; (this effective reboots the pc, without actually rebooting) - STILL doesn't solve the problem.
ONLY AFTER A REAL REBOOT, does the problem go away....
I don't know for sure why a real reboot worked, and multi > single > multi doesn't!!!!!
I suspect that I need to find out if there's some way I can tell linux to "keep the connection alive" - suspect that i'm somehow timing out - this doesn't explain why after disconnecting & reconnecting, the problem DOESN'T go away....
wish I knew what was going on too!!! Bob
