I cannot activate TurboTax 2023 because it says my computer is not online. It is online, can Windows Defender block it?

@fredcamp 

1)  Check to make sure all yoru Windows updates are fully installed and rebooted.....several updates were issued this week and might be Partially, but not Fully installed.   Those partially-installed OS updates are known to cause TTX "issues".

or

2)  Using a VPN?  Not sure what happens anymore with those...they used to be an occasional problem.

or

3)  Contact Customer Support and see what they say:

What is the TurboTax phone number? (intuit.com)

I did a lot of research and my proxy server had apparently become corrupted.  I changed to automatic proxy from manual proxy and TurboTax was able to get through.  Thanks for the reply.