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As a convenience, the iPhone remembers passwords to wifi networks for you. However, if you recently changed your NetID password, this can cause an issue for you. Here is how to reconnect to the “newschool” WiFi with your updated password.
1. Go into your WiFi settings on your device
2. Tap the “i” next to the “newschool” WiFi network
3. Tap on “Forget this Network”
4. Tap “Forget” on the popup screen
5. Select “newschool” network from the list of WiFi options
6. Enter your NetID and new password