iPhone won't connect to any wifi network, stuck on 4G

Question

iPhone won't connect to any wifi network, stuck on 4G

My iPhone XR is stuck on 4G. Even if I reset all network connections and then connect to my home wifi, (which works fine for all other devices) I do see the blue tick saying it's connected to my wifi, but still the phone stays on 4G. Turning it off for a while doesn't make a difference either. And even though all other apps work fine on 4G, my Whatsapp suddenly can't connect to 4G. I switched my SIM card to another phone (OnePlus) and there everything works fine. So the issue is really with the iPhone itself.

When I choose 'forget network' and then select our wifi network again and log in, I do see the wifi symbol for one second in the top corner but it's gone again and the 4G symbol shows.

Any suggestions?

iPhone XR

Posted on Aug 5, 2021 2:05 AM

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Answer 1

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SravanKrA

Community+ 2024

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413,940 points

Aug 5, 2021 2:19 AM in response to RogerSGDodger

Check your WiFi Router / Modem for --> Recommended settings for Wi-Fi routers and access points ...

Connecting to Wifi is the first part and then getting connected to the Internet is the second

If you connect to Wifi, doesn't necessarily mean you are connected to the internet. If you are not connected to wifi could be a problem with iPhone settings or Router/Modem Settings
If you are not connected to the internet is the sole issue of Router / Modem Settings. Contact your ISP immediately

For your Internet connection.

Over Cellular: contact your Carrier (Cellular Service Provider). The agency who issued the SIM to you
Over WiFI: Contact your ISP (Internet Service Provider), the agency who provided the Internet Service on your Modem/Router to you

However --> Connect iPhone to the Internet - Apple Support

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Answer 2

Aug 5, 2021 5:41 AM in response to RogerSGDodger

I brought out the big guns and did a factory reset after backing up.

During the initial set up, it connected to the wifi network allright. But then once the backup started to be re-installed, it went straight back to 4G again.

It has to be the iPhone because all other devices have internet as normal through the selected wifi network.

Strangely all apps are working on 4G except Whatsapp that insists that I don't have an internet connection and refuses to restore the chat history because of that...

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Answer 3

Aug 5, 2021 4:31 AM in response to SravanKrA

As I wrote, the internet connection through wifi is working perfectly for all my other devices. It's the iPhone that is acting up.

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iPhone won't connect to any wifi network, stuck on 4G

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