So as mentioned in my original post. I did already try clearing temp data. That includes the specific path you mentioned. To clarify, the app was closed and not running when I cleared. Still to humor the request. I did it again. 0 change.
As for the VPN. It wasn't that I want to use a VPN. I tested with it and listed the results with it on and off.
Pasting the results mentioned in the original post:
(On VPN cannot get to the site, off VPN seems to work up until the actual download.)
For clarity, If I have the VPN on, the site redirects me away from Peacock to their main NBC Universal site.
The VPN part is only important as far as I tried it for troubleshooting.
Ok, was just double-checking. I might see if I can search for an error 600 (If I can, I will add to this post). I can only say again, I tried the same program, yes, it was only one episode, but if that worked, you assume the other episodes will work. (Now did episodes 1 to 5 and no error.)
So something is not right, it could be again just a localized issue, and may clear up. I am in the US, East Coast.
I know there was a time we had localized issues with Peacock before many in the East Coast could not download it was pretty involved, and streamfab had to make adjustments for it.
I don't like to send people to support, as they also will tell you to clear the cache, etc. But you can try that and give them the error code. And then wait at least 48 hours for a reply.
ADDED: No hits on a search for error 600.