Speed issues tonight or has my ISP capped me?

Anyone aware of Powerusenet (or Giganews for that matter) having speed issues tonight? Was hauling ass earlier today but later this evening my speeds totally dropped to 1.5Mbps with 4 connections going. I usually max out my 6Mbps pipe with 3 connections.
I'm wondering if Comcast has capped my newsgroup speeds. I've tried ports 23, 80, and 119 and I can't get any faster than 1.5Mbps. I did a live chat with a Comcast rep and he asked if I was ONLY experiencing slow speeds with the newsgroups. I said "Yes" and he pointed the finger at Giganews. I didn't bother to tell him I also subscribe to Powerusenet hoping to somehow stay under any radar if it was in fact turned on.
I had this same problem a week ago and right as I was describing the problem to a tech in a live chat my speeds totally went back to normal. I don't know if it was just good timing or what, but when I asked what he did to my account he said he didn't touch a thing.
If Comcast has in fact capped my newsgroup speed access, what is the best line to take with them when I inquire about it? I can't even get good speeds on the 2GB/month Giganews account I get for free. Any suggestions?
I'm wondering if Comcast has capped my newsgroup speeds. I've tried ports 23, 80, and 119 and I can't get any faster than 1.5Mbps. I did a live chat with a Comcast rep and he asked if I was ONLY experiencing slow speeds with the newsgroups. I said "Yes" and he pointed the finger at Giganews. I didn't bother to tell him I also subscribe to Powerusenet hoping to somehow stay under any radar if it was in fact turned on.
I had this same problem a week ago and right as I was describing the problem to a tech in a live chat my speeds totally went back to normal. I don't know if it was just good timing or what, but when I asked what he did to my account he said he didn't touch a thing.
If Comcast has in fact capped my newsgroup speed access, what is the best line to take with them when I inquire about it? I can't even get good speeds on the 2GB/month Giganews account I get for free. Any suggestions?