Are you using 5gig wireless? The 354 code had issues on 5gig due to the binary driver baked into the firmware. Was not stable at my house with the wireless pc within 15 feet of the N66U. So what is your experience with this load? --bill
I just got this router last week (to replace a WNDR3700 with blown wireless) and upgraded to the newest firmware and haven't seen any issues with 5GHz. Granted, only the TV downstairs is using it but I'm sure that will change as I put more things on it.