Hello El-Mehdi,
When you run the "test connection", the BAW server tries to reach out to the CMIS repository Service URL which you can see in the error message.
As Tomas already pointed out, the first step would be to check whether you can open the FNCMIS root URL (which is normally /fncmis but can be changed as part of the installation process) from a browser.
If this is possible, you should also validate that the BAW server can reach this URL, e.g. by executing a curl command.
Let us know what you found out!
Best regards,
Michael
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Michael Kirchner
Leading Technical Specialist - Digital Business Automation
IBM Technology
Germany
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