Dialog and TOSLink Issue

[Pioneer123]

Hi all,

I have 2 phantoms (both silver) and a Dialog as per the specs below. The dialog is connected via Ethernet to my mesh router and the phantoms are connected via WiFi to the same mesh router less than 6 feet away. When I am streaming music from my server (24/196) over the wireless network it plays flawlessly, never a drop out.
When I connect my optical TOSLink cable from my TV to the dialog there is always drop out every few minutes and I can see the white button on the dialog flashing red as its losing connectivity.

Anyone have any idea what is causing this is as its really annoying that I cant use Phantoms to watch TV?

• Model
  Dialog
• Serial number
  J41A001256X04
• Version
  2.13.2 (2.13.2.49152)
• Build type
  release

• Model
  Phantom I Silver
• Serial number
  J18E00157EW02
• Version
  2.13.2 (2.13.2.49152)
• Build type
  release
  • Model
    Phantom I Silver
    
  • Serial number
    M25N00049EW07
    
  • Version
    2.13.2 (2.13.2.49152)
    
  • Build type
    release
    

Thanks