I have a AirPort Extreme AC. I recently connected a Belkin N300 to it via Ethernet to use as a access point. On the Airport I can get 100 Mbps wirelessly but on the Belkin I can only get 50 Mbps or so wirelessly. Both routers have the same SSID. The Airport is on channel 11 and the Belkin is on channel 1. On the Belkin it's on 20 MHz and WMM is off since I noticed turning it on reduces my speed. Should I replace the Belkin or do I have something setup wrong?