I installed Qlik Sense Server 2.1 and had an issue with printing Service.
The installation succeeded but it was impossible to connect to qmc and Hub.
The workaround solution was to stop the Qlik Sense printing service to get access to the qmc.
Then after the qmc configuration, the printing service started and qmc and hub works fine now.
Any idea what was wrong ? All the Qlik Sense services are started with local system user.