Battlefield 2042 – Portal Server Hosting Error “No server found // 9:7205636470

Hello everyone,  

I'm currently having trouble hosting the server from another guy (with his CODE) on the Battlefield 2042 portal.

Every time I click on “Host Server” in the game, I get the error message:  

MISTAKE  
No server found // 9:7205636470  

Other portal servers (of other players) are online and working without problems

→ the problem only affects my own hosting.  

My settings:        
Cross-Play: ON        
Allow followers: ON        
Persistent Server: ON (also tested with OFF)         
Game message: OFF        
Welcome greeting: nothing

Previous attempts at solutions:      
Tried turning persistent server OFF → same error    
Cleared cache in EA app and restarted game    
Tested without VPN/firewall/AntiVirus

Is this currently a known bug with Portal hosting or any possible workarounds until EA fixes this issue?
Do I need to open or forward any ports on my router or PC for this to work? But i dont think so ?

Thanks in advance for any help!