Wireless Netgear WNR3500L Router Playing Up
 

My new router, a Netgear WNR3500L model, isn't working very well. It's running a N Wireless network and this was fine until yesterday where every so often it completely cuts out. I can still connect to the network but I can't access my NAS, I can't access the router admin page, and I can't access the Internet. It seems to solve itself if I reboot.

Any ideas?