Clicking the “sign in” button leads to this link
And then does absolutely nothing at all, just stays in a blank page forever.
Tried different browsers.
Yes, but when you come back to Unity Hub you should be logged in. What happens in the browser doesn’t matter. Clumsy behaviour that is. 
I’m not, though :T
I have the same problem for month now. I cannot sign in so i am stuck at this step forever. and always give me this message “Something went wrong. Please sign in again.”
3.5.2 is broken for licensing for me currently - can not open any projects and fails to get a license response
Edit: suspect was temporary proxy issue - restart fixed
Hi all, sorry to hear that you’re having difficulties signing in.
If you’re experiencing “Something went wrong”, look for connectivity errors in the Hub logs as it’s likely a networking/proxy issue. In that case, you can try to enableProxyAutoconfig.
If that’s not the case or if it doesn’t help, please open a support ticket so that we can investigate and fix the problem.
Thank you!
me too.
*Edited:
I just checked, Firewall is the culprit.
Somehow Unity Hub.exe is missing from the Firewall whitelist, so it gets blocked.
After whitelisting Unity Hub.exe and Unity.Licensing.Client.exe, Personal license request menu is enabled, so I can extend my Unity Personal license for 1 more month.
Can anyone that lands here move over to Unity Hub 3.4.1 can't sign in so we can have the conversation in one place ? I posted a message there about a fix that has just been deployed in 3.6.0-beta.1
Hey guys, I turned off my NordVPN Web protection. It worked for me ! I hope you have a nice day nice nice !