I wonder if anyone has come across this problem.
I updated to this firmware from the basic firmware (I had given up on trying to get consistent n-wireless speeds accross the lan on the DD-WRT firmware, despite this being one of the reason I chose the router ).
Every other device at home can connect to the router wirelessly (2 iPhone 4's and my work Sony Vaio laptop) but my main laptop (Packard Bell Easynote TJ67, Atheros AR5B93 Wireless Network Adaptor) refuses to connect through windows 7. I have tried all variety of fixes from dropping to 20Mhz, different security settings, rolling back the adaptor drivers but still no joy.
Re-installed V 1.79 of the basic firmware and all is well again.
Any suggestions would be gratefully recieved, as I can not find any similar complaints, so I fear it may be a problem with my setup.