OK, when I installed the Microbit utility, all went well, I suppose this is world of Duh but I did manage to get the order wrong and now all is well.
Thanks!
It even does DHCP now so I can "rehearse" the setup either at home or the remote shack as well.
I can do this without problem because my router allows me to "fix" the result of DHCP for any given MAC, so I get the best of both worlds -- the devices are on DHCP and yet I get a fixed assignment in whatever network it is in).