Game looses conection after ~20 mins of play

[Zenion]

Idle disconnect shouldn't cause s/r to drop, it works more like /logout: you're online, and then you aren't.

I found a few resources you might find useful, apparently this is a problem a few other people have had which wasn't a straightforward fix but they found some workarounds. TL;DR version: Try setting up port forwarding for network ports FFXI may use. This may include: TCP 25, 80, 110, 443 and from 50000 to 65535; UDP from 50000 to 65535. Windows 11 might also be causing some issues because Windows versions after 7 are functionally cleverly-disguised malware.

Reddit thread about the problem, if you want to dive through the comments for fixes: https://www.reddit.com/r/ffxi/commen..._every_30mins/

Discussion on FFXIAH: https://www.ffxiah.com/forum/topic/52704/error-4001/

Another FFXIAH topic if the first one doesn't get you sorted: https://de.ffxiah.com/forum/topic/57405/4001-error-nonstop