Description: If you upgraded to iOS 18 on your iphone and Wi-Fi is no longer working. Here is how you fix it.
Step 1: go to settings and tap “Wi-Fi”
Step 2: tap on the blue “i” next to the “UNW Wireless” network
Step 3: tap “Forget this network”
Step 4: Go back to the settings home page and tap “Wi-Fi” again (refer to step 1)
Step 5(Important): DO NOT CONNECT TO “UNW Wireless”. Instead, tap on the blue “i” next to UNW wireless again.
Step 6: There should be an option labeled “Private Wi-Fi Address”, tap on it.
Step 7: Tap the option “Fixed” so that it matches the screenshot below
Step 8: Tap back and tap “Join this network”
Step 9: Go through the Wi-Fi registration window and you should be able to connect to Wi-Fi on your iphone again. If you need help regarding this step, refer to this documetn