Did a wifi test which showed 8 devices linked. 7 of them showed as green. 1 device connection amber

[Acesavi]

The device that's amber the connection keeps getting interrupted. Status on the WiFi checked too says OK instead of Good. There isn't further information 

[Chrisee]

@Acesavi sounds like the dodgy device has a poor connection tomthe hub perhaps because of distance or something is blocking the signal as any metal will block wifi. If the device and yhe hub can't be moved you may need an extender to improvectge signal.