Hello! I've got four separate 3CX pbx machines installed at four different locations for the same customer. They have a S2S VPN that links them all together that has explicit rules to allow all traffic.The four 3CX units are linked in a mesh style with bridges between each one. Those bridges say they are working with the beautiful green circle indicating they are registered. They are passing presence information correctly back and forth for all users. The issue we have is when you try to call a remote branch the call does not go through. The calling PBX gives us an error message that the remote PBX responds with a 404: User not found message. When I look at the logs of the called PBX nothing shows up indicating the PBX gets the call. I have tried disabling the Windows firewall on the called PBX and I get no result.