One Q mini box working well but buffering intolerable on second mini box

[GerardWG]

I have just gone onto Multiscreen with 2 mini boxes in addition to the main Q box. One works perfectly but the other keeps on buffering. Do I need to improve the WiFi ( we have a to-link 1004 4 G router with extender fitted) or is this an issue with the mini boxes? I am not clear whether the boxes communicate directly between themselves or if they rely on my WiFi network. Any help much appreciated GP

[Chodley]

Well spotted, they have to talk directly to each other UNLESS you're on an old Sky router which had

You can get a Q booster which acts like another node and that can help.

or use ethernet or powerline adapters

and some people have had success hard wiring the sky boxes into wifi mesh nodes but that's not a cheap solution.