Internet slow and doesn't reach certain rooms in my property

[Catcar]

Since receiving and setting up new WiFi box my Internet has been slower than usual and won't reach into back bedroom or back of the property and also disconnects on and off on some devices due to connections wich has been very frustrating

[JimM1]

@Catcar What sky hub are you using prior and now, it may help if you said that, linked below the sky hub types if you need to go look!

https://www.sky.com/help/articles/broadband-diagnostic-which-sky-hub