I have a section of our network that is connected to three switches in a seperate IDF room. In that room I have an additional 5 switches and the connections on the other 5 switches seem to run fine. The 3 additional ones have been intermittantly causing slow connections to 3 or 4 users only. While looking at the switches there seems to be no collisions occurring at the time of the slow down. Any suggestions on how to solve this problem?