@Alannah  I've got a VR900 that seems to be doing the same thing. When you say Wi-fi dropping out, you mean it becomes undiscoverable? I've just got one to replace my NowTV router. Works fine when connected, but 10 minutes later, sometimes it can go a whole day, then the wi-fi drops out. The LED's on the router show it still working.

I'm going to dig an ethernet lead out and try and connect into one of the LAN ports and see if it's still actually connected to the internet.