IOS15.4.1 causing wifi to not work

OscarLicardie Said:

"IOS15.4.1 causing wifi to not work: recently updated devices to the latest version of IOS, before doing this my wifi was working perfectly. After completing the software update, my device is not allowing me to connect to the wifi network. [...]Does anyone have any ideas about how I may fix this?."

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Troubleshooting iPhone WiFi:

A. Restart the Router:

If there is no Wi-Fi signal, then apparently you have no IP address. So, start by restarting the router.

B. Clear Temporary Internet Files:

If connecting is unsuccessful, try clearing out your Temporary Internet Files: History, Cache, and Cookies

Go Here: Clear your Safari Browser History and Set Up Content Blockers on your iPhone, iPad, or iPod touch - Apple Support

C. Try manually restarting your iPhone:

1. Go To: Settings
2. Select: General
3. Scroll to: the Very Bottom
4. Select: Shut Down
5. Slide Finger: to the Right
6. Wait: 30 Seconds
7. Power One: the iPhone
8. Try this Once More

D. Troubleshooting Connectivity:

Wi-Fi: If your iPhone won’t Connect to a Wi-Fi Network - Apple Support

E. Disable, then Enable WiFi:

In Settings, try disabling Bluetooth, and then reenabling Bluetooth, seeing if that makes all the difference.

F. Reset All Network Settings to Default:

Example of items that will be reset: (Wi-Fi Passwords, VPN Connections, etc)

1. Go To: Settings
2. Tap: General
3. Tap: Reset
4. Tap: Reset Network Settings.
5. Enter: [Your Passcode]

As a Last Resort:

F. Restore form a Backup:

Have a backup of your iPhone? If you are not concerned with losing data, then restore your iPhone from a backup that was made when Wi-Fi was working. Prior to restoring, always know to backup your iPhone, incase anything goes wrong in the future.

OscarLicardie Said:

"IOS15.4.1 causing wifi to not work: recently updated devices to the latest version of IOS, before doing this my wifi was working perfectly. After completing the software update, my device is not allowing me to connect to the wifi network.[...]"

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Report this as a Bug to Apple:

Do your Part: Provide Apple with feedback on this, letting them know how about this bug  Apple may not get back to you directly, but the more feedback they receive on this, the more they will know what is occurring, and what bug fixes to include in updates to come.

1. Go Here: Feedback - iPhone - Apple
2. Select: "Bug Report" for the "Feedback Type"
3. Comment: on when you came across this issue (after installing an update), and how you have troubleshoot it thus far. Include the URL of this post;
4. Proceed from there as necessary

Give the following a try:

• Start by doing a Force restart iPhone - Apple Support
• If that doesn't help, then try resetting your phone's network settings: Tap on Settings > General > Reset > Reset Network Settings

Sorry, but what wasn't clear from your post is which issue below is your recently updated iPhone having trouble with:

1. Connecting to the local Wi-Fi network ... or any Wi-Fi network?
2. Connecting to the Wi-Fi network, but not able to gain access to the Internet?