Fix my laptop wireless!
Offering 10$ to whomever helps me fix it. I may raise it if it proves difficult :)
Description:
System: Thinkpad T41, intel ipw2100, Ubuntu Dapper (6.06).
Everything was fine a few months ago in Hoary and in Breezy. I'm not 100% sure the problems started happening with Dapper, but the timeline fits.
The issue is that the wireless network normally works fine for a while (anywhere from 2 minutes to a couple hours), then, out of the blue, I suddenly can't establish any connection to any other hosts, or ping them.
Right after the failure, 'iwconfig eth1' reports that I'm associated to my AP (linksys wrt54gc, the essid is 'daigle' and there's no encryption, not that that makes any difference in the occurence of this problem), with a connection quality of around 85%, standard for my apartment. 'ifconfig eth1' reports that I still have my DHCP-assigned IP, in the 192.168.1. subnet.
At this point I can't establish any TCP connections, nor can I ping anything on my LAN. It gets interesting though: I can kill any running dhclient processes and restart one (or do an ifdown / ifup, which does a release followed by a renew), and I apparently get a DHCPOffer. I get my IP back, meaning somehow broadcast packets are going through, but I still can't connect to anything.
People succeed in answering jpdaigle's questions 0% of the time (0 success in 1 attempt).
Answers by: jonathanwilson
Try checking if your router has auto-summary enabled.
Oops, this question is MONTHS old, it should've been closed long ago.