Signal

[Monty57]

Why all off a sudden is o2 signal and service rubbish I have been with o2 for many years and never had any problems. When I'm home I have no signal or even not at home. When someone rings they sound like robots or underwater. And the funny thing is I have had this phone on a contract for 2 years and all off a sudden its playing up. When I can get out off the contract I will be going with someone else o2 is now rubbish. 

[Bambino]

@Monty57 See if these guides help: 

How can I sort out my network issues? - o2uk

Why do I have poor coverage indoors? (o2.co.uk)

Also take a look at the links below to help with your home connection issues:

Wifi and 4G Calling explained | O2

Wifi and 4G Calling | Help & Support | O2