Hello,
WDS repeating means, that you link (and bridge) the routers LAN side. So do not try to setup 2 instances of hotspots. You can run the hotspot on the main router, and additionally you can setup the WDS link between the two. Please follow our WDS guide on the link we provide and you will succeed.
Get back to us, if you had further issues.
Regards,
Istvan Hars,
Helpdesk @ Hotspotsystem.com