Fix Instagram Not Opening on iPhone 8 (Plus 3 Other Wi-Fi Problems)

If Instagram won’t open on your iPhone 8 — or your phone is acting weird on Wi-Fi — you’re not alone. In this guide, we’ll walk you through fixes for the Instagram issue plus three other common Wi-Fi problems iPhone 8 users run into.


Instagram App Won’t Open on iPhone 8

If Instagram installs but won’t actually launch (it just crashes right away), try these steps:

1. Delete Instagram Completely

Hold the app icon and tap Remove App > Delete App.

2. Restart Your iPhone

Hold the Power button and slide to power off. Turn it back on after a few seconds.

3. Switch Networks

Try using a different Wi-Fi or cellular connection. Weak or restricted internet can cause the app to crash.

4. Reset Network Settings

Go to Settings > General > Transfer or Reset iPhone > Reset > Reset Network Settings.
This wipes saved Wi-Fi passwords, so reconnect afterward.

5. Reinstall Instagram

Head to the App Store and reinstall the app. Test if it opens now.

6. Report It to Instagram

If it still crashes, visit Instagram.com on your computer and report the issue. There may be a temporary bug affecting certain accounts.


iPhone 8 Connects to Wi-Fi but No Internet

This happens when your iPhone connects to the router but can’t actually reach the internet.

If other devices (like your MacBook) work fine on the same Wi-Fi, the problem is likely on your iPhone’s end.

Fix: Reset Network Settings

  1. Open Settings.
  2. Tap General > Transfer or Reset iPhone.
  3. Choose Reset > Reset Network Settings.
  4. Enter your passcode and confirm.

If your iPhone still can’t reach the internet, ask your network admin to check router settings. It’s possible your phone’s MAC address was restricted.


iPhone 8 Keeps Disconnecting from Wi-Fi After Locking

If you have to log in again every time your screen turns off, this is likely a Wi-Fi or software issue.

Try This First: Reset Network Settings

(See steps above.)

Still Not Fixed? Factory Reset the Phone

  1. Go to Settings > General > Transfer or Reset iPhone.
  2. Tap Erase All Content and Settings.
  3. Enter your Apple ID password to disable Find My iPhone if prompted.
  4. Follow the on-screen steps to wipe your phone.

Don’t forget to back up your data before doing this!


iPhone 8 Shows Wi-Fi Bars but Can’t Load Anything

If you have full signal strength but can’t browse or load apps, it could be a local network issue or your iPhone just being finicky.

Try This Checklist:

  • Restart your router and modem.
  • Forget the Wi-Fi network on your iPhone and reconnect.
  • Reset network settings (you know the drill).
  • Try connecting to a different Wi-Fi network — if it works there, your home router is the issue.

Still nothing?
Call your ISP if it’s your home Wi-Fi. If it’s public or work Wi-Fi, ask the person managing the network for help.

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