@Mba2431 Refer to this thread.

@yanck What make and model is your switch ? Some switches may cause a problem like this. Have you tried with another make and model ?

@rawbar Here's the guide for Shared Hotspot mode for TL-WR902AC. Follow the guide to configure your router.

@KappaLenny Use it as is - AP mode offers best speed and stability if you have to compare these two modes. Roaming between routers will be the same because it depend on the clients device itself.

@AlGor You'll have to, because if you need help, we need more details about the issue to be able to suggest a solution.

@KraftwerkTurbo If you have a modem router which does NAT it's suggested to use the Deco in AP mode to avoid double NAT in your local network. If you have a pure modem the Deco should work in router...