WiFi Issues with iOS16.4.1 ?

An Apple customer service rep. helped me through this.

Try force restarting your iPhone.

You can force restart using the following sequence of actions:

1. Pressing and releasing the Volume Up button quickly
2. Pressing and releasing the Volume Down button quickly
3. Pressing and holding the Side button until the Apple Logo pops up

This has different results from a regular restart (via settings or pressing and holding the Side button and a volume button until you are prompted to swipe for a shut down).

richvid wrote: "I don't see the relevance of asking for the battery life of their phones because most of the users have only started complaining about intermittent wifi and lost wifi passwords since the most recent update..."

richvid ~ Because the long process of applying an iOS update to an old iPhone with a weak battery can be the proverbial "straw that broke the camel's back."

...And when a weak battery reaches a tipping point, a variety of problems can occur – including intermittent Wi–Fi. Each device has to be assessed individually and I don't ask about the battery health of newer model iPhones.

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mollymoonshine wrote: "76%"

molly ~ 76% is not healthy and is almost certainly the reason for your Wi-Fi dropping – as the weak battery cannot supply sufficient power to the iPhone's antenna to maintain a connection with Wi-Fi signals. Apple recommends replacing the battery at around 80%. So have the weak, aging battery replaced and all will (probably) be well:

iPhone Battery & Power Repair

About genuine iPhone batteries

Repair Provider Verification

(Articles found by searching Apple's Knowledge Base.)

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I had no Wi-Fi after downloading OS 16 4 1. I went to Settings then to reset my iPhone then chose restore my original network settings. That did the trick. I suggest people stay away from OS 16 4 1!

According to a youtube video, I found a solution, that works temporary and has to be applied over and over again during the day. I need to turn the phone in airplane mode and exit airplane mode after around one minute. Then wifi is working for some minutes to hours again. Sometimes, when this fix is not working, the phone has to be rebooted.

Fran-Siam Said:

"WiFi Issues with iOS16.4.1 ?: Anyone experiences (like me) WiFi issues with iOS 16.4.1 which was supposed to fix the WiFi problems... dog running after its tail... Any fix yet ?"

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Troubleshooting iPhone WiFi:

Try the Following in the Order Provided:

A. Restarting the iPhone:

If any changes were made (i.e. Installed Apps), then Settings (i.e Wf-Fi), may have become manipulated technically. So, try restarting the iPhone:

1. Go To: Settings
2. Tap: General
3. Tap: Shut Down
4. Slide: Your Finger to the Right

B. Disable Cellular:

Try disabling Cellular, and using Wi-Fi instead, seeing if that makes all the difference.

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. 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:

E. 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, backup your iPhone, incase anything goes wrong with the restoration.

I have a solution - go into your settings and delete any VPN profiles that are stored there. My wi-fi came back instantly.

Fran-Siam Said:

"WiFi Issues with iOS16.4.1 ?: Anyone experiences (like me) WiFi issues with iOS 16.4.1 which was supposed to fix the WiFi problems... dog running after its tail... Any fix yet ?"

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Report this Bug to Apple:

Do your Part: These are user-to-user forums. Apple rarely reads these forums on their own time as it is. So, provide Apple with feedback on this.  Apple wont get back to you directly, but the more they hear of this, the more they will know what is going on, and what needs to be fixed.

To Provide Feedback:

1. Go Here: Feedback - iPhone - Apple
2. Select: "Bug Report" for the "Feedback Type"
3. Comment: that this all stated after installing an update. Include the URL of this thread.
4. Proceed form there as necessary

Tinax24 wrote: "...i cannot access my wifi and my fone keeps hanging and restarting. (...) My fone is XR"

Tinax ~ Does your iPhone XR still have its original battery?

And what's the Maximum Capacity % here?...

Settings > Battery > Battery Health & Charging

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Ashish13th wrote: "iPhone 12 Pro"

Ashish ~ As an iPhone 12 Pro could be 2½ years old, it's worth asking about the battery...

Does it still have its original battery?

And what's the Maximum Capacity % here?...

Settings > Battery > Battery Health & Charging

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mollymoonshine wrote: "...iphone 11 pro..."

molly ~ As an iPhone 11 Pro could be 3½ years old, it's worth asking about the battery...

Does it still have its original battery?

And what's the Maximum Capacity % here?...

Settings > Battery > Battery Health & Charging

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I had issues with getting on my home network. I finally had to go to Settings and reset my original network settings. I suggest no one download OS 16 4 1!

The problem is most likely in iOS 16 firmware, after that the main problems started with WIFI and devices such as iPhone 13, se, 14.

I also have a post about it

Problem with Wi-Fi after iOS 16 update - Apple Community

Fran-Siam wrote: "I am still using iPhone X..."

Does your iPhone X still have its original battery?

And what's the Maximum Capacity % here?...

Settings > Battery > Battery Health & Charging

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gothwin wrote: "...iPhone XR. Basically the phone keeps disconnecting from WiFi..."

gothwin ~ Does your iPhone XR still have its original battery?

And what's the Maximum Capacity % here?...

Settings > Battery > Battery Health & Charging

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