I've been using the methods in 'Toastman QoS guide' to setup my network and most of the time everything runs very well. I prioritise my gaming traffic (XBOX360), so ports 80,88,53,3074 get the maximum throughput in my QoS banding. 88 & 3074 is also forwarded to the xbox static IP 192.168.1.115 My default class for incoming traffic is "Class C" (Out 5% - 80%, In 40%). My question relates to UPnP. If UPnP automatically maps the following for me, wouldn't my QoS be ineffective for the XBOX? Would I need to make 'UDP 33452' a high priority port? External Internal Internal Address Protocol Description 33452 33452 192.168.1.115 UDP Xbox (192.168.1.115:33452) 33452 UDP To me, it seems that UPnP has lowered my gaming priority due to my default QoS settings. Is my logic incorrect?