[tor-relays] bridge down

Apologies for the length but detail is important. My bridge pc's internal power supply had to be replaced, and was down for a week. After the replacement, I restarted the daemon and the tor service. Everything seemed normal except that it's not reachable from outside. No configurations have been changed. The only difference I see is a message in the log indicating that the network speed has changed/slowed down. The forwarded port in the router is the same. The torrc file has not changed. I can surf the web. Literally the only change is the replaced power supply. Any ideas?

Thanks