iPhone 8 keeps losing wifi and going onto 4G?

[Catalyst1]

Hi All

I've got the sky super fast broadband, and broadband boost.

My iPhone is has, for the last week or two, kept losing the wifi signal, even if I am sat in front of the router. I've tried resetting, disconnecting, restarting everything (phone and router) but it still happens.

It's causing me problems when I work from home, as the app I get calls on keeps saying "poor connection" or "check your network" and I'm unable to answer or make calls.

Any suggestions?

Many thanks

[Catalyst1]

[jamesn123]

@Catalyst1 

Your router stats look fine. Is it just the iPhone having issues?