Blank JBoss EAP 7.4 Management Console

I am new to JBoss.
I have performed a fresh install of JBoss EAP 7.4. I ran add-user.bat to set up a management user.
I cannot log on to the management console at 127.0.0.1:9990. No login pop up appears and the screen is blank white.
So far I have tried, without success:
- Turn off pop up blockers
- Turn off Internet Explorer compatibility mode
- Restart using -bmanagement server IP address

There are no obvious errors in the log files.

I followed the same steps on a different machine and the install worked fine.
The problem machine is running Windows Server 2022.