I will most likely, but at the same time I am not totally convinced that its the router.
I use VPN into the US (work) alot on the connection and just recently it keeps dropping out and reconnecting within a few seconds, sounds okay, but when you are on a ip phone making a call its a bit of a problem.
There are 2 x iphone 4s, 1 x 9300 BB, 4 x laptops, one desktop and a Tablet connecting to to the router. They all show the same behaviour.
I guess having written all this I need to face facts and get the router returned - only thing I will do so before that it switch off modem only mode and see if I get the same problem on the SH, if not I'll just be grateful I bought it off Amazon after all