Many thanks in advance. I am attempting to configure Elastix 1.5.2 on a whitebox P4 2.4gHz that has two NICs. Connections to the internet are via ethernet 0 (192.168.222.0/24) and the SIP endpoints are on ethernet 1 (10.10.10.0/24). Both networks appear in the System>Network tab. The Elastix server is the gateway/firewall for the Ethernet 1 network and serves DHCP to that network. I did have to configure dhcpd externally from Elastix which may be a clue :huh: Every time I try to Endpoint Scan within the PBX tab, the only network presented is Ethernet 0, 192.168.222.0. When I attempt to override with 10.10.10.0, I get the error message Invalid format in Parameter: endpoint_mask. I also ventured into Unembedded freePBX and found no reference to, or any configuration point for more than one network. Directions out of the roundabout I stumbled into appreciated.