Hi, I have a Windows Server 2008 R2 with two network card on different network... and being used as my System Center Operation Manager server Nic1 - Corporate network Nic2 - Cellular modem Right now if I leave both card active at some point the server start using the DNS server of the Cellular modem and lose connection with the internal server for monitoring. Maybe there's a way to make sure the server always use the DNS server from the local network card. What I would like to achieve is when the Nic1 lose connection then Nic2 will be used instead... and once the connectivity on Nic1 is back then Nic1 will be used. The Nic2 will only be used in case of issue and to send notification to person on call. Thank you for you're help, Martin

Hi, Thank you for you're answer... on my server the network card that as the Cellular modem was the first one on the list. I moved the one from the corporate network as the first one and everything seems to be Ok. I love this site... there's always someone who as the answer when I cannot find it. Thank you,