You don't specifically mention, but it sounds like you have the OBi placed ahead of your router, with its internal QOS activated (i.e., modem > OBi > router). With your measured bandwidth, that should not be necessary. I'd suggest reconfiguring so that the OBI is last in line. For ease of configuring, place the OBi in your router's DMZ, and then take appropriated measures in the OBi202 to prevent SIP dialing abuse - either the Phonepower method (ref their KB), or the "oleg method" (search this forum).