That is due to the implementation of what are called ultrapeers. You connect to a fewer number of machines which in turn connect you to a larger number of machines (your horizon). This is done, I understand, to reduce the amount of traffic on the net and in turn improving the overall performance on the net. There is a correlation between your delcared bandwidth and the number of ultrapeers you can have.... I have DSL and can have as many as 6 although it is typical to have only 3 or 4. If you are not getting good search results you can remove the Ultrapeers and others will take their place. There is some issue with Morpheus Ultrapeers where mal-configured systems appear... I am sure the developers of Limeware are on the case.