All of the clients have to deal with the same issue... the host on the other end has either dropped the connection or gone offline. The requery solution is an attempt to re-establish the connection... and to keep from flooding the net with constant retries it waits x number of seconds before 'requerying'. Limewire just calls it requery - most of the clients I have tried have some form of mechanism to try and recover from a lost connection... they just have a different way of referring to it.