I have a problem my ISP is refusing to help me with, even though they put up the whole system.

Specifications:

There's a Thomson TG784 router through which the internet comes in to the building, Behind that (for some reason) is a Juniper NetScreen 5XT - 105 Firewall/Router? which leads to an AMX nxa-enet24 switch that carries the connections all over the building and a series of Apple AirPorts for wifi.

Problem:

The first router (Thomson) is required for ipTV (by Elion). The tv or ipTV box has to be connected straight to the Thomson router. My service provider cannot see the Thomson router from their side, but see the Juniper, so we might think the Thomson has been configured as a bridge.

I need a way to access the Thomson router and see it's configurations, because currently, when connecting a Samsung tv to that router (with elion app for ipTV viewing) or even a computer, it cannot access the internet and even if it could, it would update the Thomson router software, losing it's configurations which I need to preserve.

I'm unable to find out the Thomson routers ip address to connect to it, and when directly conencting with a cat5 cable, it doesn't give me an ip address.

Hope someone can show me the correct direction for solving my issue.

Thank you all for reading, and I appreciate any help,

Alari Truuts