Xbox works fine for some things, I can access Netflix, can download from live marketplace, etc, but cannot join a party and cannot play a game. Other people cannot join my party, cannot play my game. Error when I try to join a party is "Can't connect to xbox live party, there might be a network problem."
Xbox join party and games work fine when connected directly to comcast (motorola) modem.
Dir-601, firware 1.02NA and 101NA. Hardware version A1.
Port forwarding TCP 53,80,3074 and UDP 53,88,3074 - also included TCP 80 and 21 to no avail.
SPI enabled or not - seems to make no difference.
NAT endpoint independent.
ALG all four checked.
Xbox has most current version available.
Reserved DHCP for xbox and put in DMZ - same result.
Also unchecked port forwarding and loaded settings into application rules port triggers - same result.
Have turned of router, modem an xbox after every confiruation change.
Set port forarding IP to my laptop and used port test software which confirmed all listed ports were indeed opened.
Xbox network test shows no NAT problems or messages - seems to be a clean test.
Very strange, very frustrating. Appreciate any suggestions.