400 "The http request header is incorrect" access from remote machine
I have set up a new Qlik deployment on AWS.
After setup when I click on QMC on the local machine I get to the enter license screen.
As I'm doing this as a service for another company I have set up a remote connection and opened the proper ports.
When I browse to the Qlik server from a remote machine I get to a Qlik error page saying "400- The http request header is incorrect."
From the fact that I get a Qlik error, I can understand that the ports are opened properly but I don't understand what else should be set up or what is missing from the setup.