WiFi is only running at 15 t0 20 meg. Ethernet is at 150meg

[VarkGripper]

I have only been on Sky since March 5th and at first it was fine. However, now my WiFi sunddenly drops our or onl gived 15 to 20meg max. Sometimes drop to 1meg

[daveNOS]

@VarkGripper Unfortunately WiFi is susceptable to inteference and that can cause low or very low speeds, you could try changing the wireless channel the router is using to see if it helps but if it doens't there is little that can be done unless you can identify and remove what is causing the interference.

[VarkGripper]

I never had an issue on BT  and SKy only allows a few channels and now I have NO  internet at all!

Maybe get an engineer in the next few days - what service!