Plan concurrent viewing by the account allowance confirmed for the order. Saving an account on several devices does not automatically authorise simultaneous playback on all of them.
Confirm the account limit
Describe how many devices need to play at the same time and ask for a written quotation. The order form’s extra-connection options are requests and do not calculate an approved multi-connection price.
Plan household capacity
Consider each active viewing device alongside video calls, downloads and uploads. Test the actual simultaneous use case; one device working alone does not prove the household setup can support every session.
Check player licences separately
A player may have its own device licence or transfer rules. Those software rules are separate from the service account connection allowance.
When one device stops as another starts
Stop the additional sessions and compare the result. Check the confirmed allowance and contact support before changing credentials or reinstalling apps.