Unable to add any new series - Skyhook communications

Sonarr version (exact version): 3.0.9.1549
Mono version (if Sonarr is not running on Windows):
OS: Windows 10 pro 21H2 Build 19044.2251
Debug logs: Ubuntu Pastebin
Description of issue: When trying to add a new series in Sonarr, the search function displays the following: “Failed to load search results, please try again.
Search for ‘Simpsons’ failed. Unable to communicate with SkyHook.”

This happens whatever is entered in the search box, and has been doing so for days now.
The log file is showing that there may be an issue creating a SSL/TLS secure channel

I have looked at all similar related posts but cannot find a way to fix this issue.
Can anyone out there help please?
TIA

Possibly related to TLS 1.3 being enabled?

I tried at first disabling TLS 1.3 in the browser(s), without success.
Then I disabled TLS 1.3 in Windows 10, and rebooted.
That’s fixed the problem, I can now add series - Thanks Markus101

A post was split to a new topic: Unable to Add Series - Invalid response received from SkyHook

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