reply to nevertheless
Re: Does Cogeco block mac addresses? Not on my end. It disconnected my router spontaneously. Changing firmware only came at the end of the troubleshooting process. Did lots of release/renew long before this. I knew nothing was wrong with the router since I was still able to connect through the Trendnet to the modem without issue (ie: the WAN port was alive and well). I think you kickstarted it at your end.