The installation seems to be successful, after installation there’s a web error, something about “customErrors mode" and “Unrecognized attribute 'targetFramework'. Note that attribute names are case-sensitive”
We fixed it by modifying web.config and re-registering ASP.Net version 4 with IIS.
But then the Lansweeper web just doesn’t load anymore.
For anyone else with this problem: please check the knowledge base article first and if this doesn't fix the issue, contact support@lansweeper.com with screenshots of your IIS configuration.