If your iPhone keeps disconnecting from Wi-Fi while on T-Mobile, you’re not alone. Many users experience Wi-Fi drops due to settings, network conflicts, or iOS bugs. Here’s a step-by-step guide to fix it in the US.

1. Check Wi-Fi and Router Settings

  • Make sure your Wi-Fi router firmware is updated.

  • Restart your router and iPhone.

  • Avoid using crowded Wi-Fi channels; switching to 2.4GHz or 5GHz bands can stabilize connections.

  • Disable Wi-Fi Assist on your iPhone: Settings → Cellular → Wi-Fi Assist → Off.

2. Forget and Reconnect to Network

  1. Go to Settings → Wi-Fi.

  2. Tap the i icon next to your T-Mobile Wi-Fi network.

  3. Select Forget This Network → Confirm.

  4. Reconnect by entering the password again.

3. Reset Network Settings

If Wi-Fi still drops:

  1. Open Settings → General → Transfer or Reset iPhone → Reset → Reset Network Settings.

  2. Enter your passcode and confirm.
    ⚠️ This removes saved Wi-Fi passwords, VPNs, and APN settings.

4. Update iOS and Carrier Settings

  • Go to Settings → General → Software Update and install the latest iOS version.

  • Check Settings → General → About; if a carrier update is available from T-Mobile, a prompt will appear.
    Keeping both iOS and carrier settings updated resolves many Wi-Fi and network-related issues.

AvNexo Tip

If your Wi-Fi still drops after trying all steps, temporarily switch to mobile data or contact T-Mobile Support. Sometimes signal conflicts between Wi-Fi and cellular networks require carrier-side adjustments.

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