Razer Central stuck in infinite log-in loop.

Razer Central has been stuck in an infinite log-in loop for at least a week now. It's not giving any sort of error, it's just stuck on the logging in screen, screenshot below. I've tried solving the issue myself, and here's what I have tried:

• Patiently waiting, often for hours
  
  
• Closing and re-opening Synapse 3
  
  
• Restarting the whole computer
  
• Repairing the Synapse install
  
• Uninstalling and reinstalling, several times
  
  
• Uninstalling, with deleting every Razer-related file in Program Files, both in normal and 86x, then reinstalling, at least twice.
  
  
• Resetting the password on RazerID (identical to the previous password)
  
• Resetting the password on RazerID (a completely different password)
  
  
• Reinstalling the drivers via Device Manager, using the Update Driver option, and reinstalling due to the drivers causing the installer to open up again.
  

I have confirmed that this is entirely local to my machine. On my laptop, which was on the same exact network (except over WiFi rather than LAN), I successfully logged in, even after I updated synapse to be the exact same version I'm in right now.

As it's a reinstall, it should be using the latest update, which is 7.3.11.110. I'm also on Windows 10.

Screenshot: