Solved: New PC connects to WiFi but no Internet

[Cadder]

Hi all,

My fairly-new build (Nov/Dec 2020) has been great so far, and this morning I have had my first real problem with it.

I connect to WiFi but can't browse the Internet. My CAD applications can't connect to servers. Dropbox and OneDrive aren't syncing.

I can connect to my Talk Talk hub via the PC and navigate through. Everything looks fine there.
Our phones are getting both WiFi and Internet. I have turned off my mobile data and type this to send through the same hub the PC is connected to.

Any thoughts on what I can do?

 

[Cadder]

I now type from my PC, yay!

I restarted the TalkTalk hub and that changed nothing.
I found some suggestions online, one of which is to open command prompt and type "ipconfig/release" and after a short wait, everything came back.

To people who know networks that may be normal. To me this was all bizarre and a first.