HTTP Error 502.4 Bad Gateway when accessing Qlik Sense Enterprise on Windows Hub or Management Console

Sonja_Bauernfeind — Fri, 17 Sep 2021 11:03:29 GMT

After installation of Qlik Sense you get HTTP Error 502.4 - Bad Gateway when opening QMC or Hub and might see the following error message in your browser:

Environment:

The error message is displayed by the Microsoft Internet Information Service (IIS) which is already installed on the host you are trying to install Qlik Sense. As Qlik Sense comes with it's own webserver it might conflict with other web servers already installed on the same host.

Resolution:

Uninstall Microsoft Internet Information Service (IIS) on the host you install Qlik Sense with the following steps:

Click Start, click Run, type Appwiz.cpl, and then click OK
In the Add/Remove Programs window, click Add/Remove Windows Components
In the Components box of the Windows Components Wizard, click to unselect the Internet Information Services (IIS) check box
To complete the uninstallation, click Finish, and then Close

Re: HTTP Error 502.4 Bad Gateway when accessing Qlik Sense Enterprise on Windows Hub or Management Console

amit_ghaste — Wed, 26 Nov 2025 16:11:04 GMT

You don't need to uninstall IIS, you just need to stop the default website on IIS.

There is a port mismatch issue that is happening, as long as IIS listens on a different port than Qlik, they can work together.

Either change the port for the IIS sites, or change the port for Qlik (in QMC).

article HTTP Error 502.4 Bad Gateway when accessing Qlik Sense Enterprise on Windows Hub or Management Console in Official Support Articles

HTTP Error 502.4 Bad Gateway when accessing Qlik Sense Enterprise on Windows Hub or Management Console

Environment:

Resolution:

Re: HTTP Error 502.4 Bad Gateway when accessing Qlik Sense Enterprise on Windows Hub or Management Console