Why does spotify on my PC keep connecting to my sky box?

[mrsaladdodger]

Plan

Free

Country

UK

Device

DELL PC 2014/15

Operating System

Windows 10

My Question or Issue

why does spotify keep connecting to my sky box? 

I am playing spotify on my PC and all is fine, then automatically it will stop on the PC and play on the SKY box. Keeps doing this? 

Thanks