Could not detect compatible server at https://owncloud.home

I have had been hosting my server at home using a self-signed certificate. I use my own CA and thus the client computer considers the owncloud certificate to be valid. I have multiple computers on my network, Windows and Linux that are using ownCloud client successfully. The exception is my macOS machine that I updated to Sequoia and noticed synch was not working. So I am blaming the macOS update.

In order to figure things out; I deleted the connection and tried to create it again but I get “Could not detect compatible server at” error now. I tried the sugesstion of adding owncloud to the URL that’s been suggested in previous threads. That did not work for me.

Another confusing thing is the client on my mac can successfully connect to two other owncloud servers fine and continue sync.

Expected behaviour

Create new server connection

Actual behaviour

Fails with an error message

Steps to reproduce

  1. N/A

Server configuration

Operating system: Ubuntu 18.4

Web server: Apache

Database: MySQL

PHP version:

ownCloud version: 10.3.2

Storage backend (external storage):

Client configuration

Client version: 5.3.1.14018

Operating system: macos 15.2

OS language:

Qt version used by client package (Linux only, see also Settings dialog):

Client package (From ownCloud or distro) (Linux only):

Installation path of client: /Applications/

Logs

Please use Gist (https://gist.github.com/) or a similar code paster for longer
logs.

Template for output < 10 lines

  1. Client logfile: Output of owncloud --logwindow or owncloud --logfile log.txt
    (On Windows using cmd.exe, you might need to first cd into the ownCloud directory)
    (See also ownCloud Documentation Overview )

  2. Web server error log: No activity in the log when error occurs

  3. Server logfile: ownCloud log (data/owncloud.log): No activity in the log when error occurs

Hey,

i’m not sure but i think it could be possible that the “Could not detect compatible server” message is causing by the use of a 5 year old version of ownCloud (Changelog for ownCloud Core 10.3.2 (2019-12-04)) together with the most recent desktop version 5.3.1.

I’m not sure if this is supported by the ownCloud people or have been ever tested by them so i think it could be possible that you need to update the outdated versions including the end of life Ubuntu version 18.04 to more recent versions first.

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