As I've been a little busy lately, this has not been resolved.
When Bitcomet starts, it will go from grey then to green. I notice that Bitcomet downloads at a fast speed then either a few minutes or seconds, the downloads become slow. The light will still be green but when right clicking to refresh, it then becomes yellow. So I close Bitcomet, start again and back to square one. Sometimes when starting it goes straight from grey to yellow.
Before I posted the first post I had re-formatted the hard drive so there is hardly anything on here compared to before the re-formatting. Pretty much the only programs on here area ArchiCAD, MS Office, iTunes, Quicktime, Nero 7, Winamp, WinRAR, Power Shutdown, Fallout 3 Vegas, GTA IV Liberty City and that's about it other than printer, video and sound card drivers.
I do not use those other programs you had mentioned such as Nvidia's network address manager or any other IP filtering program like peer-guardian/peer-block.
It's a little frustrating as I have set-up Bitcomet quite a few times before with never any issues but this one has stumped me.