Here is the issue. We have a new N model AEBS. Noticed that our upload speed was horrible, after an online speed test. The download was what it should be for our cable connection, around 4.7 Mbs, but the upload was sometimes not registering or giving a result of 5 K. This is an all Mac network btw. So I powered everything down and restarted the modem, router, etc. Same issue. I also reverted to the 7.1 and 7.0 firmwares with no luck. Hit the reset button on the back of the Airport, same problem. Then I hooked up directly to the cable modem. Upload went to where it should at 649 K. I then hooked up a belkin pre n router, everything was fine through that router. Thinking that the airport had a bum IP address, I took the IP the belkin got and statically assigned that IP to the Airport WAN interface. Got online, downloads are fine, but still upload speeds are shot. I'm thinking bum router?