There is a switch in between Prod MX and Test MX. The port on switch is setup as an access port on wired vlan and the WAN port on Test MX is set to DHCP. I'm thinking this is what may be causing the issue so tomorrow I was going to put Test MX on it's own vlan that isn't being used by other devices on the network (i.e. a /30 network) to see if that makes a difference. ... View more