Remote access - wavlink quantam d6

That depends on what’s actually going wrong, e.g. did you succeed in setting up the port forward on your router and configure Plex accordingly.

Did you already have a look at the related troubleshooting support article?

https://support.plex.tv/articles/200931138-troubleshooting-remote-access/

There’s also a guide with some more details on how to troubleshoot remote access issues.