Recently lost data connection although 4g signal seems good.

[D8v8]

If I turn my device off and on I get short amount of data then just stops, just started to happen say last 3 days or so.

[Enlli]

See if anything here helps

Guide: How can I sort out my network issues? 

Guide: Is the network down for me or everyone? 

[Oxonian · Accepted solution]

@D8v8 

This app is referenced in the guidance that @Enlli has drawn to your attention ; it is a very useful bit of kit :-

My Network App - Find Out More About Your Network Coverage | Apps | O2

https://www.o2.co.uk/apps/my-network

Understand your network coverage

With the My Network app you can keep an eye on your coverage, wherever you are. Download the app and you’ll be able to:

- check the status of our network in your area – you don’t even need to enter your postcode
- test your network speeds
- report any issues with your service.
It’s simple to use and means that you can check the network without having to visit the main site or even enter a postcode.

[D8v8]

This was very useful - so although didn’t directly solve my problem it was useful.

[Oxonian]

I am glad that you found it relevant @D8v8 ! 👍