Sky Q & Ethernet impact on speed

[Pottersapp]

Sky Q x 1

Mini boxes x 3

Router SR203

Sky Ultrafast 500mb

New build house 2023

TP Link RE700X Range extender / Access Point x 1

TP Link 6 port hub used with 5 ethernet connected cable all going to wall sockets in different rooms

Scenario:

I can access internet speeds over wi-fi at 500mb from my TP Link Access Point, connected to one of the wall sockets linked to the TP Link 6 port hub. 

I have 500mb wifi speeds and 500mb ethernet cable speeds at both the access point (TP Link RE700X) and the main Sky router (SR203)

Here is the issue and I can't understand why its happening.

As soon as I plug in an ethernet cable into the Sky Q box or any of the mini boxes the access point speeds drop by around 50%.

I have tried a different 6 port hub to see if the original hub was faulty and that had the same issue. So it wasn't the 6 port hub.

I have tried changing the  TP Link RE700X Access point and again the porblem persist so it wasn't the access point.

I have plugged in any of the 3 TV's all with ethernet conenctions, conencting a TV via ethernet cable to a wall socket connected tothe 6 port hub, DOESNT affect the speed. Even with all three conencted.

So it seems there is a link between connecting sky Q or mini via ethernet cable affecting the speed at my access point.

My laptop has Wi-Fi 6 (802.11ax)

I have used a couple of speed test websites all with the same result.

So my question is. Does anyone know why plugging in a Sky Q or Sky Mini box via an ethernet cable would reduce wifi speeds or wired speeds? 

If I've missed any detail, then happy to porvide more.

Just to add, I can connect and currently do conenct all sky devices using Wifi ( they work well but due to historical connection issues I would prefer ethernet and thought I should be able to do so)

Lee

[Chrisee · Accepted solution]

@Pottersapp a number of customers have reported similar issues with speed reductions when Sky Q boxes are hard wired. It would appear to be connected with the way Sky Q networking works. Sky Q was developed around 2015 and uses what is now a discontinued proprietary networking system. Sky have stopped development of the system as the future of satellite broadcasting in the UK is under 5 years, 

[Pottersapp]

Thank you for the reply.

Do we know if the new glass and stream service with hardwiring into the new boxes are free from this issue?

[Chrisee]

@Pottersapp the Stream pucks and Glass TVs are simple network clients and do not have any similar issues in my experience.