BT whole Home discs. 1 disc has red light.

[Grovese4]

I have the 3 disc whole home set up and one disc has solid red light (it’s not the main disc). 
I’ve tried resetting. Connected via Ethernet but it’s still not working. 
I’ve had various issues with these discs over the past month and still waiting for Bt to come back to me. 
Any ideas how I can fix this one disc please ? 

[Keith_Beddoe]

@Grovese4 

It would be best to give the WHW product helpdesk a call on 0808 100 6116 ( Mon to Fri 9am to 5.30pm and Sat 9am to 2pm) or drop them an email to: btconnectedhome@bt.com and they'll be happy to help.