Connection struggling with streaming

[ceedy]

We do have Sky Q, and at least 3 mobiles in use at most times,and all devices have issues with streaming either just with Facebook rubbish, and any movies, via prime, netflix etc. they seem to play ok, for a long time   but start buffering towards the latter part of the stream. 

Get no issues with on demand stuff, just movies on the big apps Disney, prime and netflix 

We do live in an old house 350 years old with very thick walls, and also use a 3 box mesh system, that gives about the same WiFi speeds as the TT router 45 Mbps ISH .

The 11st mesh box  is in direct unobstructed line with the TT router and in the same room as the Sky Q box.

Any clues guys N gals , thanks 

[KeithFrench]

Please can you elaborate by answering these few questions:-

1. What make/model of router do you have (if this is a TalkTalk router, these details will be on a label on the rear or underside of it)?
2. What package are you on?
3. If you have a mesh network then, how does the SkyQ connect to the router, via Ethernet or wireless?