UT 9.3.2 setup accepts DHCP but not Static setup

I have installed version 9.3.2 and the computer won't connect via a Static setup. Testing Connectivity fails. And the ISP says they can't see the NICs / MAC addresses.

With an earlier version of UT, this exact same Dell OptiPlex 755 set up with the same static address without hesitation and functioned for months with this same ISP (using the same IP, Gateway and DNS).

Does anyone have any idea of the problem. Does 9.3.2 have a bug in this respect?

Additionally, I took the computer home and it sets up fine with my personal ISP running DHCP.

Mystified ...

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