I was reading some more and I think Murphy might be right. I was reading an older post that said that the ISP will give you a second IP address for free, but you have to pay a one time turn-on fee???murphy wrote:The switch after the modem will not work unless your ISP will give you two IP addresses.
Since most ISPs use dynamic IP addresses now days, I would try the switch idea first to see if it works (issues two IP addresses), if it doesn't work, than call your ISP.