'Unable to connect externally (docker, linux)

I followed the docker install on an old laptop running Linux Mint una

Last night I set up DDNS with noip.com and managed to connect to wow (on the same network) using

set realmlist MYNAME.zapto.org

Then this morning I setup my phone as a mobile hotspot and tried again using the same realmlist but no longer from the same network and when i login I get the "Unable to connect..." in the wow client

In the SQL database i changed acore-auth realmlist address to MYNAME.zapto.org (using HeidiSQL, I also changed it in the 'Data' tab)



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