channel guide and video on demand not working

[andi1000]

I had this problem last month and tech support said it was a problem with the router, they sent me a new one and a week and a half later it has started all again-- no channel guide, no video on demand. I can't get through to tech support-- there is no online chat and no one answers my tech support phone calls, I'm am placed on endless hold-- I used the in home agent and everything --nothing seems to work - I've rebooted the router and the STB several times and checked all the connections

settings/system informtion/ IP address is set to 0.0.0.0

please help