When the tech was out he did eliminate an extra splitter that was in the wall, now I only have one, for cable tv and Roadrunner. As far as the homegroup solution, since posting I now know that the problem must be somewhere further up the line with Roadrunner. I have an XBox 360 connected to my router also and just checked and am having problems with that also. That eliminates my PC as being the culprit. Thanks for the input though. I guess yet another call to Roadrunner is in order.