Mini mServer 2 on QNAP problems

[golke53]

I have 2 QNAPs, both Intel, one is new with latest firmware. MinimServer 2 installed and working no problem. Full license. The 2nd QNAP is a backup but a bit older: TS439 Pro II+ with QTS 4.2.6 latest update. The 439 is out of support and ony recieves relevant security updates. I performed an update today before I installed MinimServer 2. Did all the same way like on the new QNAP: manual install with the same package. Installation goes fine and Icon in AppCenter turns greeen. System message: ready to use. Click on open: browser cannot connect to xxx.xxx.xxx:9790. Look at Minim Watch 2: not visible (only the new NAS). Look into Kinsky: not visible. Seems to be port problem. No chance to get into configuration dialogue.

Actions performed to repair: uninstall and new install of Minimserver 2, new install of Watch, restart of the NAS, restart of the PC running Watch. To no avail. The IP address is correct and I can access port 8080 without problems (this is the admin page). Please advise.