Are you running dynamically assigned IP addresses as opposed to manually / static assigned? Assigning the IPs should solve the issues if I read your trouble correctly.
do you have the proper keyword entered if needed?
also, did you do a regular reset on the slave/remote receiver? i have not noticed auto-refresh yet on the recordings list from the master unit.
not sure how but i started noticing a somewhat mild form of refresh on my slave unit tonight without having to do a reset of the receiver, anyone else?