OK, I've had the router cut out since this morning and the connection has been fine all day, though it seems a bit slower. Gonna have to lay the blame on Linksys for this one.
Thinking I'll just move a power block onto the desk so that instead of having to physically unplug the router the power blocks reset button can be reset much quicker. Just sucks that it is the router. I'm terrified of the idea of trying to update a router, seen enough "flash to brick" stories.