Help! WiFi is showing as disabled on android phone

[#1]

Hi 

I have a recently started having a problem using the wifi with my android phone - it's a Moto G4

The wifi works fine on all other devices in the house, and did work fine on my phone, until a couple of days ago

The phone finds the plusnet wifi OK, but when you try to connect it shows the WiFi as "disabled".

Anyone know why this might be? Or how I can I solve this? 

I don't think the problem is with the phone as I am able to connect to other wifi networks without any problems, just not my plusnet one at home!

Cheers!

ZD

[#2]

Not relevant for this thread which covers ADSL issues; should post in appropriate one which is Tec Help.