PLEASE HELP!! I have had open NAT for a very long time since following a post on setting up the different ports. It is only recently that I have changed from an open NAT to a moderate one and I do not understand what caused it. I run on a WRT54G v8 Linksys router connected to a broadband comcast modem model DHG536. I can still play on live but I am constantly kicked out of parties and off live at random times. This has not been a problem until recently and I will take any help you can give.