I have the same issue but when running the Config Wizard for NCM (did a offline install)!
I have a new VM (Windows Server 2019) with 16GB RAM, only 26% used.
I'll open a ticket with the support and send them the diagnostics. Will post here again once solved.
I had a similar issue, with a very remote polling engine. I have to increase the timeouts.
This is an old article, but worked for me
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