From time to time my controller looses it's connection (e.g. when connected to SqueezeCenter and the PC gets turned off)and the controller displays the blue wireless symbol. To re-connect,even to Squeezenetwork, I have to power down the controller, restart it, then it comes back fine with a connection.

This happens even though the receiver has the white wireless symbol and also I can connect via iPeng on my iPod touch.

It doesn't seem right that I should have to keep powering down the controller when clearly there is nothing wrong since iPeng is connecting perfectly well with the receiver. Any ideas ?

Controller Version 7.3r3993
Receiver firmware : 58
Controller wireless
Receiver bridged (wired connection to a wireless repeater)
Router : BT Home Hub (1.5)
Squeeze Center : Version: 7.3.2 - 24695