OMV constantly restarts

Dear all,

after a long (and good) time with OMV 2 I decided to switch over to OMV 4 (4.1.22-1).
I took out the old OMV-2-SystemHDD, connected a new hard drive and installed OMV4 using a USBstick.
After that I opened the WebGui and changed some settings - putting the to same state like in my old OMV2... simple things like IP adress, DNS, Wake-On-Lan, but also OMVextras. I installed & activated the Nut Plugin and restarted after that..
Everything fine... After doing some things I tried to shutdown the machine using the WebGui, System shuted down... but after 2-3sec. It started again
So I tried a shutdown from shell - same after 2-3 seconds the machine started again..

So I tried to find the problem...
WOL? 1. deactivated 2. Pulled network cable... did not help
Bios? Why should it? Everything worked fine within OMV2?
After that I changed the harddrive back to the one with OMV 2, started the system could shut it down as it should be... using the WebGui

Now I have three things that change:
1.) Hard-Drive
2.) OMV-Version
3.) restarting system

Can anyone give me hint what I can do to get a OMV 4 System that accepts a shutdown?

Thanks for your help in advance

Anyone - ideas? What can I do?

Dear geaves,

I'm speachless... why does a extension that exists to shutdown a system - start the system?
That was really completly out of my sight... but what is wrong there?
I had the same settings like on my old OMV2 system, what could be wrong? Any additional Ideas for my nut settings?

By the way - thanks for your post!

Ok, thanks for your help / idea!!!