Listen server stopped working. Ports open

I use to run my listen server. Me and about 9 people play on it. became a ritual until after update #67 came around. The details of the update show nothing that should have affected my server.

YES MY PORTS ARE FORWARDED, YES THEY ARE CORRECT 3 separate sources say so.
Please don’t say sv_lan 0 or heartbeat. I’m not new at servers.

Now my friends can join by means of “connect xxx.xxx.x.xxx:27015” But that just isn’t good enough. When my server was on the list I met some of my friends by them randomly joining me. according to game-monitor.com my server is legit and appearing. But to everybody on GMOD its not on the master server list.

If you ever had this problem or something similar please post what happened or what you did.

Is it possible that the server name has been reset? It sounds like everything is fine if they can connect through the console.

It still runs under NERV. But for anyone who reads this… It appears on master list when DMZ is activated for my computer (DMZ=all ports open). That means that ports 27010 through 27020 doesnt contain all the ports I require.