Our old server died suddenly and we have a new one, but it's not connecting properly. (We have Comcast business.and a Netgear CG3000. Old server was Windows Essentials and new one is Windows 2012R2.)
There is a dearth of info about the old server--no records kept. I don't know a lot about the settings, but we're just throwing this out there: Where's a good place to start figuring out what the old device did and where the new one and the cable modem are conflicting?