I'm a new Docker user and I have just installed NextCloud on my Ubuntu PC (but not using docker). I used Docker to install onlyoffice document server on https://localhost & nextcloud is on localhost /nextcloud/. I have followed instructions to the best of my understanding, i have enabled the Onlyoffice App in NextCloud and filled out the necessary details on the nextcloud admin page (see image)
Only Office NextCloud Admin Page
After I click "save" I receive the message "Error when trying to connect (bad request or timeout error)"
Any advice or link to help solve this issue would be really appreciate a lot.
The address of the documentserver must be accessible for the user browser and from the ownCloud/Nextcloud server. Please try using ip address or domain name in the connection settings.