So, this is a problem that started happening suddenly for a friend of mine. His torrent client stopped connecting (it was uTorrent, but we also tried Vuze since). Here's what I had him do:
- Check if the relevant port (50800) is open here:
The port was closed.
- Open the port in his router (standard TP-Link, he did so in "Virtual Servers" part under "Forwarding").
Still closed according to the above site (and others)
- Created rules in Windows firewall. Didn' help. Disabled Windows firewall completely (and stopped service), didn't help.
- Weirdly, every other port we checked was also "closed" (even 80, etc.), but that happens in my PC too, so I guess there's a logical explanation for this.
So you see - ports are open in router, Windows firewall isn't the culprit, and still the port is blocked. I read somewhere that sometimes these sites will tell you the port is closed just because they're not being used at that moment. I found that true in my PC (my Vuze port is "closed" when Vuze isn't open, but then it says it's open when I turn on Vuze). But even when my friend opens up Vuze, the port is still closed according to the site, as opposed to what happens in my PC.
This is really weird, he doesn't know what changed (it worked before), firewall and router seem not to be the problem.. what else? Any help would be appreciated
P.S. He has Windows 8