Getting nowhere fast with Belkin tech support.

Using F5D7632uk4 ADSL modem and router and Win XP PC (SP2) wirelessly.

Connection to ISP fine. Signal strength to PC fine. Connect
physically to back of router and no worriers. However, wirelessly, the
connection is excellent in strength but drops every so often..... if
i click repair it comes straight back but there seems to be no way of
sustaining a long period of connectioj between the card and the router.

We have changed almost every setting twice and factory resent....
distance is no Issue as it is the same from the same room or the other
side of the house. No issues with other networks, phones or microwave.

Are my expectations too high or should th kit run continuously?