Slow Internet After iOS 18.1.1 Update? Here are Some Fixes

Experiencing slow Wi-Fi or cellular data after updating to iOS 18.1.1? This article offers several troubleshooting steps to help restore your internet speed.

Possible Solutions

  1. Disable/Delete VPN: VPNs, while beneficial for privacy, can sometimes conflict with new iOS updates. Try disabling your VPN or deleting its profile in Settings > General > VPN & Device Management > VPN.
  2. Reboot Your Router: A simple router reboot can resolve IP address conflicts. Unplug your router, wait 30 seconds, and plug it back in.
  3. Turn Off RCS Messaging: While RCS enhances messaging, it might impact internet speed. Disable it in Settings > Apps > Messages > RCS Messaging.
  4. Update Carrier Settings: Check for carrier settings updates in Settings > General > About, as these often include performance improvements.
  5. Reset Network Settings: This will erase saved Wi-Fi passwords and cellular plans. Find this option in Settings > General > Transfer & Reset iPhone > Reset > Reset Network Settings.
  6. Factory Reset (Last Resort): If all else fails, back up your data and factory reset your iPhone in Settings > General > Transfer or Reset iPhone > Erase All Content and Settings. This has helped some users resolve persistent internet issues.

For more tips, check out resources on optimizing iOS network performance. For related information on iOS updates and features, see iOS 18.1.1 App Malfunction Solutions and iPhone 18's Discrete RAM to Power On-Device AI.