DSL modem to a router that is handing off traffic to the server. Less than a year old Server 2008 R2, I have it doing DHCP, DNS and a software specific application that uses SQL. If the dsl connection goes down, all of the clients lose connectivity. Can logon to the server and everything is still working. But clients cannot access the server, nor the internet, until I reboot the server. I'm at a loss. Any suggestions?