We have just changed our network infrastructure. We have one specific vlan for servers. Servers can't learn the DG mac. The Windows servers can ping other servers on the same vlan but they can't ping the DG ip address.

Some of the discovered items like phones are discovered and put into the diagram way to the left of the screen and can't be reached the only thing you see is the line that connects it to the switch. Is there anything that can be done to prevent this ...