When you switched, did the new company install any equipment? I'm assuming that your wireless connection is just within the house, and somewhere the base station (router?) connects to a wire.

That's what I meant by "modem" When you say your modem is disconnected, I assume you mean the modem that is built into your machine to connect to dial-up service through the telephone wire. I was thinking about the cablemodem or DSL modem.

I should have clarified: sorry