@Clive_A I found the root cause of all my troubles ... I did change the path of installation when running the installer, I want to keep stuff clean and decided to put the Controller in "C:\Program...

@Clive_A I might have been too quick cheering ... Needed to reboot the computer once more and again the failure comes. So again the software can not start the MongoDB Server. Another clean install...

@Clive_A Thanks I did a removal of the controller and the MongoDB I installed myself. Then rebooted the computer and installed the controller again (only the controller) Then it asked me to launch...

@Clive_A Found the task and killed it as you suggested. Then relaunched the Omada Controller software and it took quite some time to tell me that it "Failed to start Mongo DB Server"

I'm rather new to the TP-Link community and to the TP-Link prodiucts. It is my first installation and I encounter a problem with the Omada SDN Controller software. The installation of the Switches...