A complete silent install of teamviewer host does not seem to work anymore like in older versions:
This worked with older versions for example:
msiexec /i "PATH" /qn APITOKEN="api_token" CUSTOMCONFIGID="customconfig" SETTINGSFILE="PATH" ASSIGNMENTOPTIONS="--grant-easy-access"
Now to install teamviewer silently, I install an older version and update it through Management Console.
Thank you in advance,
Lukas