Yeah, I don't think this falls under tech support guidelines. I can try to help, on my own behalf. I'm no expert, but I've fiddled with this stuff a little.
Can you give a little more detail please? Are you running your own router downstream of the MTS gateway? Did you configure it to their recommended settings? (turn off DHCP server, change ip address, move wire from WAN to LAN port, etc)
This may have something to do with UPnP, NAT or something like that. I haven't touched that kind of stuff, but someone else here might have an idea.
Can you give a little more detail please? Are you running your own router downstream of the MTS gateway? Did you configure it to their recommended settings? (turn off DHCP server, change ip address, move wire from WAN to LAN port, etc)
This may have something to do with UPnP, NAT or something like that. I haven't touched that kind of stuff, but someone else here might have an idea.