Iphone o2 WIFI Calling Intermittent

[cmasonuk]

Hi I have an Iphone XR and the WIFI calling goes on and off constantly.

However in the same house, an Iphone 7 Plus stays connected to WIFI calling 'most' of the time, on the same WIFI network.

Both pay monthly sims.

Any ideas why this happens please? Thanks : )

[MI5]

Just a glitch. It comes and goes depending on WiFi signal strength.

[cmasonuk]

Hi thanks for the reply but can't be the WIFI as there is an IPhone 7 Plus here too (wifes) that is always connected to o2 WIFI calling.

The phone sits next to the router with full signal - rock solid WIFI.

Both pay monthly o2 sims.

Any ideas why this happens please? Could it be the phone / settings etc.?

Mobile Data is turned off when at home - does this have a bearing?

Can I do anything to keep WIFI calling on all the time...?

Thanks a lot for any advice : )

[gmarkj]

Is there a power saving option under WiFi?
I know that Android phones sometimes turn WiFi off if they go to sleep...

[cmasonuk]

Thanks a lot - that makes sense - will investigate.