Cant' connect to Syncthings WebUI if run on Fedora Server 40

I have installed Syncthing on a Fedora Server 40 and set it up in systemd.

The Syncthing service also starts and journalctl shows me no problems.

The service starts as syncthing@syncuser.service, where syncuser belongs to the wheel group.

In the config.xml under /home/syncuser/.local/state/syncthing I changed the address for the WebUI under <gui> from 127.0.0.1 to 0.0.0.0 so that the WebUI can also be accessed from other computers.

However, this does not work.

What could be the reason for this?
With Fedora Workstation 40 it works fine when I use the ‘Start Syncthing’ launcher in GNOME.

Many thanks for any advice.

maybe your server is blocking port 8384.

does your gui section look like this?

<gui enabled="true" tls="false" debugging="false">
    <address>0.0.0.0:8384</address>
    <apikey>key0123456</apikey>
    <theme>default</theme>
</gui>

Yes, exactly.

So the default values of the firewall or SELinux settings seem to be different for the Fedora Workstation variant? I had not yet dealt with these issues.

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I have opened the Syncthing ports in the firewall. It works now. Thank you very much.

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