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Step 2: tap on the blue “i” next to the “UNW Wireless” network
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Step 3: tap “Forget this network”
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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.
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Step 6: There should be an option labeled “Private Wi-Fi Address”,tap on it.
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Step 7: Tap the option “Fixed” so that it matches the screenshot below
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Step 8: Tap back and tap “Join this network”
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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