The dude not picking up rb711

Hi

I have just installed a routerboard 750p and rb711 5ghz board

I have added a device on the dude and matched the existing settings of my other mikrotiks that show up green and are polling however the one I have added remains red

I can ping the device from the dude etc but for some reason it remains as if it is down

I can also connect to this device through winbox etc. The same as my other devices but not sure what I need to do on the dude to allow it to be monitored so I can see if it goes offline, currently it remains as if it is offline when it is not

All my other access points are online and are on the same network as the new rb711 addition

Thanks

Sorted it