Could be that your ISP changed to CGNAT
Can I suggest that you use Cloudflare tunnel? And don't call yourself stupid, you are quite the opposite dwelling in this self hosting adventure.
Warum kein WireGuard VPN (seit FritzOS 7.50) und dann drauf zugreifen?
Sonst Cloudflare Tunnel :)
isnt it breaking the tos of cloudlfare tunnel?
If you don't want to use cloud flare, duckdns is a free alternative. I think you're German speaking? Here is a German guide: https://dc9vq.de/anleitungen/duckdns-org-und-fritzbox/
Self-Hosted Main
A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.
For Example
- Service: Dropbox - Alternative: Nextcloud
- Service: Google Reader - Alternative: Tiny Tiny RSS
- Service: Blogger - Alternative: WordPress
We welcome posts that include suggestions for good self-hosted alternatives to popular online services, how they are better, or how they give back control of your data. Also include hints and tips for less technical readers.
Useful Lists
- Awesome-Selfhosted List of Software
- Awesome-Sysadmin List of Software