That's pretty much it, the web updater makes it down to the download part, then fails. But If I click the one to download the zip it works. Tried manually upgrading... didn't go well. And ideas?
Sorry to hear you’re facing problems 
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Nextcloud version (eg, 20.0.5): 20.0.8
Operating system and version (eg, Ubuntu 20.04): CentOS Stream 8
Apache or nginx version (eg, Apache 2.4.25): nginx/1.14.1
PHP version (eg, 7.4): 7.2.24
The issue you are facing:
Can’t use web updater to upgrade.
Is this the first time you’ve seen this error? (Y/N): Y
This is what I’m up against…
I have no other connectivity issues.