How to Fix iPhone 7 Mobile Data and Wi-Fi Not Working

A smartphone without an internet connection is basically a paperweight — and when your iPhone 7 can’t connect to Wi-Fi or mobile data, it’s beyond frustrating. This guide will help you figure out why your connection keeps failing and how to get your iPhone back online again.

Below are real-world problems and solutions that can help you troubleshoot your iPhone 7 internet issues.

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iPhone 7 Mobile Data and Wi-Fi Not Working (Reported by Kevin)

Problem:
Kevin’s iPhone 7 Plus was losing both mobile data and Wi-Fi connection constantly, even after Apple replaced the phone. After endless troubleshooting cycles, the issues returned, affecting two different devices.

Solution:
It’s unlikely this is a carrier issue since Wi-Fi (which is independent from your carrier) is also affected. The most likely culprit: a bad app or corrupted settings that were reinstalled after setting up the replacement phone.

Here’s what you should do:

1. Backup your important data using iCloud or iTunes.
2. Erase all content and settings:
   • Go to Settings → General → Reset → Erase All Content and Settings.
   • Enter your passcode if asked, then tap Erase iPhone.
3. Set up your iPhone as new (not from a backup).
4. Observe your phone for at least 24 hours without installing any apps.
5. If the connection is stable, start reinstalling apps one at a time and check after each one. This will help you catch the app that’s causing problems.

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iPhone 7 Can’t Connect to Office Wi-Fi (Reported by Joseph)

Problem:
Joseph’s iPhone 7 connects fine to his home Wi-Fi, but not to his office network. His older devices like iPhone 5S and MacBook work fine at the office.

Solution:
Most likely, your office Wi-Fi has security settings that require devices to be registered or approved.

• Talk to your IT department and ask if your iPhone 7 needs to be manually added to the network.

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iPhone 7 LTE and Wi-Fi Both Not Working, Can’t Turn Off Find My iPhone (Reported by Eva)

Problem:
Eva couldn’t connect to either Wi-Fi or LTE. Because she had no network access, she couldn’t disable Find My iPhone, which is needed before restoring the device.

Solution:
Start by resetting all settings to refresh your network configuration:

1. Go to Settings → General → Reset → Reset All Settings.
2. Enter your passcode if prompted, then confirm.

If that doesn’t work:

• Perform Erase All Content and Settings (same steps as Kevin’s solution above).
• Backup your iPhone via iTunes if iCloud isn’t available:
  1. Connect your iPhone to a computer with iTunes installed.
  2. Open iTunes and select your device.
  3. Click Back Up Now.

After wiping, set up the phone as new and recheck the internet.

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iPhone 7 Can’t Connect to Hotspot From Another iPhone (Reported by Atifash)

Problem:
Atifash’s iPhone 7 connected to the hotspot from his iPhone 5S but couldn’t use the internet.

Solution:
First, check if your hotspot actually works:

• Try connecting another device to your 5S hotspot (like a laptop).
• If the laptop can’t access the internet either, your carrier may not support mobile hotspots without an additional plan. Contact your carrier for confirmation.

If other devices work fine, troubleshoot the iPhone 7:

1. Reset All Settings:
   • Go to Settings → General → Reset → Reset All Settings.
2. If that doesn’t help, perform a full restore via iTunes:
   • Connect your iPhone to your computer.
   • Open iTunes, select your iPhone, and click Restore.