It seems I am in a very similar situation.
Today, I noticed that my mobile phone fails to synchronize calendar and contacts with my freedombox. I can connect to plinth, I ran diagnostics.
The following apps are installed: BIND Coturn ejabberd Postfix/Dovecot Matrix Synapse OpenVPN Quassel Radicale Roundcube Syncthing WireGuard
I have the following diagnostics failed:
- for ejabberd, rspamd, synapse, radicale and syncthing:
exactly the same 12 diagnostics to access URLs with addresses 127.0.0.1, [::1], 192.168.10.66, a global IPv6 address, fe80::6c26:65fc:6e1b:799b , 10.84.01, fe80::da70:8fc:a1d0:6b42, 10.91.0.1, fe80::6c26:65fc:6e1b:799b, localhost ipv4, localhost ipv6, fbox.
- “static configuration xxx is setup properly” fails for
/etc/apache2/conf-available/matrix-synapse-plinth.conf
/etc/fail2ban/jail.d/matrix-auth-freedombox.conf
/etc/fail2ban/filter.d/matrix-auth-freedombox.conf
/etc/apache2/conf-available/radicale2-freedombox.conf
/etc/apache2/conf-available/roundcube-freedombox.conf
/etc/fail2ban/jail.d/roundcube-auth-freedombox.conf
/etc/apache2/conf-available/syncthing-plinth.conf
I am away from home, then I can’t check whether there are connectivity issues. I have very limited time to spend on this now. I apparently can use ejabberd and email seem to work.