I am not sure what is wrong, but just recently my Internet Connection Sharing stopped working. I have a G5, connected wirelessly via Airport. The internet works fine on the G5. I then have a PC (Windows XP) connected via ethernet to the G5. Now, this used to work fine, I would turn on internet sharing (to share my Airport over my Ethernet) and all worked just fine. Today, it no longer works. Here is the error message in the console I see:
Jul 21 16:43:47 benmac mDNSResponder: Repeated transitions for interface en0 (192.168.2.1); delaying packets by 5 seconds
Jul 21 16:43:50 benmac mDNSResponder: NAT Port Mapping (LLQ event port.): timeout
Maybe that can help someone out. I don't recall installing anything recently, or doing anything that would cause any issues or changes to my Internet Connection Sharing working. I have tried stopping and starting Internet Connection Sharing, as well as restarting my G5 a few times. Nothing seems to get it going again. Any help would be gladly appreciated.