Mini boxes

[GOG54]

I have a pro box and 2 mini TV boxes as per my subscription but if I go onto my 3rd TV it tells me I have too many boxes running unless I make that box the default by pressing OK. 

Is there a setting that be changed to fix this?

I have a full fibre  connection. 

Thanks

[DarrenDev]

It looks like you factory reset one of your TV Boxes recently?  When you do that, it causes it to appear as a new TV Box to us.  You can just accept the message, and it won't appear again (you may see the message once on each box, depending on the order that the boxes were originally used).