Receiving error connecting since domain change

Both Chrome and Firefox have started blocking the site since the domain change.

Firefox message:
Did Not Connect: Potential Security Issue

Firefox detected a potential security threat and did not continue to w2g.tv because this website requires a secure connection.
What can you do about it?
w2g.tv has a security policy called HTTP Strict Transport Security (HSTS), which means that Firefox can only connect to it securely. You can’t add an exception to visit this site.
The issue is most likely with the website, and there is nothing you can do to resolve it. You can notify the website’s administrator about the problem.

Chrome says my company’s firewall is blocking it.

Possible security certificate issue?

Any help would be greatly appreciated!

Thanks a lot for your feedback. The certificates should all be fine. Can you tell me a bit more about your network connection. Are you behind a firewall? Does it help when you clear all cookies and site settings in your browser?

Are you trying to load the homepage at https://w2g.tv or some other URL?

Can you try to follow this instructions. It might fix the issue:

https://www.thesslstore.com/blog/clear-hsts-settings-chrome-firefox/