I have 3 pcs connected through a router, using optonline. I need to move 1 of the pcs, but the wireless connection won't reach to the new location. Optonline is telling me that even with my own new cable modem, they won't activate it without charging a 2nd monthly fee of $50!!! That makes no sense at all - there is no increased bandwith use on our part - just need a modem to reach what we were already getting with a wireless connection. What to do?