+ 0 Votes Reponse To Answer CG IT May 31, 2013 at 12:53am PST routers create networks. Each router has it's own subnet addressing and default gateway. Disconnecting your Linksys router, which is the gateway for all hosts behind it, means host's can't find the gateway out. The hosts don't know about the Cisco router as a gateway out because their gateway address is the Linksys. Thus no internet.