Web browsers not working after Windows 10 install on SSD

[CheweyToo]

Nightmare install but it's finally loaded.

Now I find IE and Edge won't get online despite having internet connection. Firefox installer on USB gets nowhere.

I have an IP, I can ping my router, I can ping Google, and I have Network and Internet Access in network and sharing centre.

What am I missing here?

 

[CheweyToo]

I should add that I am wired and the network adapted driver reports being up to date compared to the OEM driver. I can't search online for software, of course!
The whole rig is a brand new Dell Precision 3420 that came with W7 Pro and has been updated to W10. It all worked before the new SSD.