@PaulSerban0001 : the tool you use is broken. Its tells me that the ports I use for years to get access to my network are closed.  But I know that they work as I use them nearly every day.

https://www.heise.de/security/dienste/portscan/test/go.shtml?scanart=1

This is in German! So please check radio button  "ausgewählte Ports" and enter a list aof 1 to 10 portnumbers seperated by a comma. Before you start the scan don't forget to select the checkbox in front of "ich bestätige, dass ich berechtigt bin, die IP-Adresse ..". This scan identified the open ports of my router as open.  That means it works! Good luck!

I am a professional, I know what I am doing, I also checked as you said, look.

network check

Your portscan result

Only red lines mean a possible problem.

port Surname status explanation

7777 closed No standard port.

After a deep research I was able to fix this port issue. Now I have another problem, I am trying to open a gameserver for some friends, and I wonder how to keep them online when my IPv4 changes. I connected the noip.com account to my telekom router but as far as I remember, when the ip update in the noip.com site, the domain will be avaibile after 5-10 minutes, is not instant, I need something insant for not lose the connection when the IPv4 change. Any soolution to this?