WiFi won’t connect to iPhone 14 since 16.3.1 update.

Hey there,

If asked, enter the password for your Wi-Fi network. Get help if you don't know your password.

Even if you enter the correct password, you might see an "unable to join the network" message or an "incorrect password" message. Restart all of your devices, then try to enter your password again.

Ms_T123 Said:

"WiFi won’t connect to iPhone 14 since 16.3.1 update."

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Report this to Apple:

Do your Part: Seeing similar posts, this seems to be a common issue. Hence, most certainly a bug. So, inform Apple of this bug - Apple won't get back to you directly, but the more feedback they receive on this, the more they will know what bugs are occurring and what needs to be fixed.

How to Give Feedback:

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

TheHoganFamily Said:

“WiFi won’t connect to iPhone 14 since 16.3.1 update.: […]The problem may be related to DHCP and routers with ipv6 enabled.”

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Re-Enable Wi-Fi, for DHCP:

With DHCP, everything is Dynamic where all is assigned automatically. So, if using a Static IP address, then that would not get in the way here, because that is how the router is configured.

iPV6 adds much more with hexadecimal added to it. So, given Dynamic is being used, disable Wi-Fi and then enable it once more and a new IP Address would be assigned as a result.

A work-around for the issue may be to manually set the IP address, subnet mask, router address, and DNS server address.

The problem may be related to DHCP and routers with ipv6 enabled.