For those of you who are interested in the results of the follow up visit from Comcast regarding my direct modem line being disconnected, here's the story.
Yes, my dedicated line was disconnected. In addition, it has been deactivated. Now no signal is coming in on it.
The three-way splitter is now feeding two modems and one TV.
The Comcast technician moved my modem which is on the third floor to the 3.5db output since my cable has the farthest way to go. The other modem and TV are on 7db output.
There's a thread over here talking about the different Cable Splitter outputs. Good luck understanding it.
The Comcast technician sys not to believe the online speed tests. Just look at how fast pages load.
His line testing tool says that the signal up to the third floor is good.
The pages do load pretty quickly.
Now all I need is a new router that doesn't have a 10MB limit. How do you like the Linksys WRT54G? My initial research leads me to believe that the WRT54GL is a better choice.