Cannot connect to Battle.net?

PvPGN and D2GS are working perfectly on the server (Windows Server 2008) and the client is connecting successfully.

When I try to connect from another computer, I can't connect to the server. I checked - the ports are opened, I can even connect with telnet to 6112, 6113, 6114, 4000, 8888.

I thought it could be the gateway but it looks fine... Any ideas?

Added: 29.09.2019 04:45

Never mind, the problem was in the gateway editor (reg file).