RJ11 Cable To Cut Down Interference

[#1]

Have one of these https://www.amazon.co.uk/gp/product/B008IKVA1W/ref=oh_aui_search_detailpage?ie=UTF8&psc=1 at the moment between my router and OR MK III master socket. I think I might be getting interference from the central heating causing drops and freezing on streaming. Just wondered if there was a better cable I might be able to use?

[#2]

These have a good reputation.

Do you actually need it to be 5 metres? Shorter is better. 

[#3]

As I have said before I use two of these both 10m long with most of the wire bundled under my cabinet and I don't suffer from any form of degradation. However, with these being unavailable on Amazon I'm sure you'll get the shorter variant elsewhere online.

[#4]

Thanks both.

[#5]

I use one of these with an OR MK2 Socket and get :

Link Rate

79999 Kbps

19999 Kbps

If thats any help