2 Clients with the same settings on 2 different PCs - 1 stoped working

[cerebralcow]

I have two PCs, connected to the same network, that I use uTorrent on. PC1 has Windows 7 and PC2 has Windows XP. Both OSs are up to date. A week or two ago they were both working fine, now PC1 will not connect to any torrents. PC1 can't even connect to the update server. I get an error saying "unable to contact update server". They are both version 2.0.4, I don't want to update either of them until I fix them both. I ran a few speed tests on both of them at speakeasy.net. PC1 tests at 4.5 Mbps down and PC2 tests at 6.6 Mbps down. They both test at 0.3 mbps up and speakeasy says they both have the same IP.

When I run the uTorrent setup guide on PC1 it never shows any progress on the test unless I uncheck bandwidth, under network it says "neither NAT-PMP nor UPnP is enabled." When I run the uTorrent setup guide on PC2 I get an error in both sections - well I got an error in bandwidth earlier, I don't remember what it was, I do remember that it was too long to fit in the window and the important part wasn't visible. Under network I get an error that says "Port is not open. (you are still able to download)" with both PC1 and PC2 (most of the time I get the error about NAT-PMP and UPnP on PC1 but if Ikeep trying to run the test it sometimes gives me the other error, but it never connects to any seeds or peers). PC2 downloads torrents at about 700 mbps.

I mostly just want to get both of them downloading again.

[Switeck]

I don't believe Knology uses modem-routers combo boxes, but they might if you have both phone and internet through it.

"speakeasy says they both have the same IP."

If both PCs connect through the same router, you should expect them to have the same internet ip.

"under network it says "neither NAT-PMP nor UPnP is enabled.""

Then disable both UPnP and NAT-PMP in uTorrent...and do manual port forwarding on your router.

"PC2 downloads torrents at about 700 mbps."

Certainly you have your units messed up there.