Although your Farm has been configured via the AdminTool's Farm Controller, users are not being redirected to the intended application server and are instead establishing sessions directly on the Gateway server.
This issue is likely caused by the Gateway not being correctly designated as a true Gateway role.
You can change this from the WEB > Web Portal Customization > Settings menu :
https://docs.tsplus.net/tsplus/webportal-customization/#web-portal-customization---settings
https://docs.tsplus.net/tsplus/gateway-server-enable-disable/
