I currently have an XR500 on the latest firmware and as of now having issues with TP working with cod on my Gaming PC. My settings are set to Games Console (No option for COD but almost every other game under Traffic Prioritization Selector) with my wireless type being Normal (default) since I am hardwired. I have have tried testing the TP with setting my source and destination ports to 1-65535 and ran a speed test with it working, showing red light with packets running. I have also done port forwarding under the advanced settings based off of activision's website for MW2 ( Since MW3 is the same game) to see if that can help with prioritization. I will post a screen shot to show my TP settings. I appreciate any help and if anyone can please show me how to select Call of Duty as an option for the Traffic Prioritization Selector as I have seen it before in other videos of owners with the xr500. Also if you have any tips to add on to help MW3 perform better for latency/bullet reg would be greatly appreciated.