I have two 3cx boxes set up. One has two NICS, one of which is a subnetted card (192.168.0.12) and the other which has a public IP (64.50.120.xx). The other server is on a public IP, 82.165.77.xxx I'm attempting to bridge the two. Here's what occurs when I use a non-tunneled slave connection from the 82.165.77.xxx box: 10:38:36.770 DeviceRecord:eviceRecord [CM305004]: Failed to find a transport to host 64.50.120.xx 10:38:36.708 DBA [CM501003]: Connected: Database 10:38:36.676 CallMgr::findLocalIPs [CM501006]: Default Local IP address: [82.165.177.xx And here's what occurs when I attempt to use a tunneled connection: 1:13:54.333 LineCfg::invoke [CM504012]: Tunnel is connected, performing Bridge registration 11:13:00.145 LineCfg::invoke [CM504012]: Tunnel is connected, performing Bridge registration 11:12:59.739 LineCfg::connectTunnel [CM504011]: Line:20001: connecting tunnel: remote=sip:64.50.120.xx:5090; local=sip:3CXTunnel@localhost:5080 Both boxes are using the latest build, 5.1.4510 In neither case do the bridges succeed in registering. Any ideas?