iPhone keeps using mobile data when connected to strong WiFi

Thirith

I’ve noticed recently that my iPhone uses mobile data while at home, rather than the WiFi network. I’ve got WiFi Assist on, but this behaviour is new and unexpected, since I have a fast, stable WiFi setup, and I’ve not made any setup changes. Does anyone here have an idea what might be going on?

Gizzy

My fix to all technology issues is to try shutting it all the way down, and turn it back on.

spool32

yeah restart the whole phone, just to get it out of the way.

knitdan

I don’t have cell service at home due to the local geography so if I don’t turn on Airplane Mode my phone will drain itself trying to find a tower

Presumably it’s programmed to always prioritize cell signal so you might try using airplane mode to force it not to do that. Wifi still works when airplane mode is on.

It also needs to be told to connect to the home Wifi even though it’s done so many times in the past and I have auto-join enabled for the home network.

But yeah restarting the phone is always a good bet

Thirith

Cheers. I can’t remember what I finally did, but it started working normally again. Perhaps I even did the old off/on thing.