Help with Unauthorised WOPI host. (TrueNas Install + Remote Collabora Server)

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Hello all,

New here and hoping you can help.

I have Nextcloud 30.0.3 installed on TrueNas Scale. I have recently installed Nextcloud Office (8.5.3) and set the configuration to use a demo server from Collabora for testing, prior to purchasing a subscription. The Collabora server shows sucessfully connected.

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However I am getting the “Unauthorised WOPI host. Please try again later and report to your administrator if the issue persists.” error when trying to view a document.

I have browsed to the “Allow list for WOPI requests” section and entered in the standard rfc1918 address’s (192.168.0.0/16,172.16.0.0/12,10.0.0.0/8)

I know these are internal address’s, do I need to add to the allow list external IP addresses? My TrueNas server has all its trafic routed out over my VPN via Firewall rules and wonder if I need to account for this in the allow list?

It is worth noting that I access my Nextcloud instance via a HTTPS Domain and access is configured through Cloudflare Tunnels.

Any help would be greatly appreciated :slight_smile:

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Updated topic to be clearer.

Thanks in advance.

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you have to add the public IP address of your Collabora server (and/or Cloudflare servers) to the “Allow list for WOPI requests” - check log where the request comes from.

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After upgrading to Nextcloud 30 from 29 and Ubuntu 24.04 (from 22.04), I have the same issue yet again, and my ‘Allow list for WOPI requests’ is empty, so that can’t be the solution, unless the list is mandatory?

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