hey @efe, so this is a hunch…
see Nextcloud Snap - Nextcloud Office where the user had an issue with Nextcloud office, loading documents in Nextcloud snap built in CODE…
your log is showing IPv6 addresses too, so maybe the solution @Moto used is an option for you?
that’s correct and we’re sorry to hear there are issues, it seems many users have a full dual stack, thus having IPv4 and IPv6 addresses. usually the latter is priorised if both are available. this causes connectivity to fail.
@wwe could you confirm?