Roarke
Nice cable modem, I've added a picture to this post for other forum members to look at.
Anyway, it seems that Comcast may be one of the ISP that install bandwidth shaping hardware and software to curb P2P usage:
Here is the URL to another part of the forum where other users have had the same problem as you:
http://www.gnutellaforums.com/showth...hlight=Comcast
Hope this helps.
UK Bob