Tech support by phone fixed this. It was: TCP/IP, Ethernet, DCHP Client/and then it autogenerated the numbers. Thanks to all of you for your help
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You can try just deleting those DNS numbers. Well, they should definitely be deleted, they are probably wrong now, going to your old ISP. But they are usually "Optional" anyway, so you can try just leaving the box blank until/if you can get the new numbers from the new service provider. It should require no more than a simple phone call to them. For some reason they seem to want to keep the numbers somewhat difficult to find.
Maybe it gives them something to use their tech support crew for when working with a Mac?
And don't forget to click the "Renew lease" button on the Control Panel just to be sure the modem realizes it's supposed to communicate!
Let us know how things go.