I recently moved to another place and the problems started appearing. I am having the problem with the BitComet client at my home. When I try to torrent wireless(connected to my home router) it's slow or not working, but if I avoid my router and connect directly then it's suddenly working. My router has opened ports(forwarded) and the firewall rules are ok as well. What I've discovered recently as well is that if I use VPN no matter if I'm connecting wireless or ethernet - it's working(but the speeds are significantly slower that why I dont see this as a solution).
What I want to mention as well(i´m not trying to adverstise or promote in any way other side), I have installed another torrent client(uTorrent) just to check is it up to me or the BitComet and then I saw that uTorrent is not able to pass through at all(so no downloads at all without ethernet cable). BitComet is able to get thru as you can see on the picture, with some slow download speeds and those torrents are with 5k+ seeders( so healthy ones :) )
@And yeah BitComet is 1.7 version - latest one, think so