Nginx not reachable by browsers, but Nextcloud still working

[pi-rat]

Hello,

 

I’m facing yet another strange problem, and I am posting it here as well, because I think it could be OS related.

 

Some details about my server:

 

• Armbian 26.2.1 trixie
• Nginx
• Nextcloud (latest)
• MariaDB
• Letsencrypt (updated 3 weeks ago)

 

 

Until a few days ago, every browser on any of my devices could call the web gui of my server and Nextcloud presented its login page. Then, after the latest OS update, suddenly browsers tell my they can’t connect to the server, but every synching app on any of devices still work perfectly! And I can even access my files on the server by using FolderSync’s¹ internal file browser.

 

It is just the browsers that can’t connect any more, no matter which browser, no matter which device! There is no error message in the appropriate log files, neither in the system log, nor in Nextcloud’s own log, and the message that the browsers present is simply some variation of “I can’t connect to server”. No specific reason, no error code.

 

This is more than strange to me. I would get it if synching apps would have stopped working as well, but that is not the case. Does any one have an explanation for this mystery? If you need more information, just let my know!

 

Many thanks in advance!

 

(¹ Synching app on Android.)

Edited 43 minutes ago by pi-rat