I shut down one of DNS servers for a couple of hours for maintenance and this DNS happens to be listed as "Preferred DNS Server" on all computers. After I shut down, my LAN started to be disconnected simply because this "Preferred DNS Server" is temporarily down. BUT don't forget we do have another secondary DNS server properly set up as "Alternate DNS Server". How come this "Alternate DNS Server" was NOT coming to help when the Preferred DNS Server is down??
Did I miss anything so the Alternate DNS Server never comes to play its role? Please help.