Wi-fi stopped working after upgrading to iOS 17.0.1

I found that we had similar issues with our corporate WiFi as noted in this thread. One fix was to connect the iPad Pro to a network dock via USB-C. It seemed to fix/reset the cert, but I'm uncertain if this was because it was able to connect to InTune correctly. I will be trying the test later this week with affected iPhones and Lighting->USB-C or Ethernet adapter.

Exactly. I can’t even see my networks to select them. My home network is visible in edit but there is an unnamed ghost network that can’t be forgotten, can’t be deleted, can’t turn off auto-join (without it coming back and breaking more things like making it impossible to turn Wi-Fi off or on. Resetting network to factory doesn’t help (resolves for a few minutes at most). I hate this update. It’s completely made my phone worthless.

It would be so great if "support experts" (I use that term very loosely) could read what they're responding to and not regurgitate the same **** on every post because they want to farm karma.

Bsd43 has a much more useful response.

Here’s something to try, we’ve been noting issues with corporate wifi and “private wifi address”. (there are other threads following this).

Go into settings->wifi then tap on “edit”. Find the network(s) it won’t connect with and tap on the (i) icon. Turn off “private wifi address” and see if that helps.

It seems that iOS 17 automatically sets this and sometimes other privacy settings when you install it.

Mine was also fixed by 17.0.3. I did not need to do a reset or anything special -- simply update to 17.0.3.

Please note that this fix seems to be specific for those of us that had/have issue connecting to certificate-based Wifi authentication. If you have issues connecting to, say, WPA authentication access points, this is not your issue.

Same here. I have restarted router and phone multiple time. I even forgot and added network again but it still does not work on my wifi. I thought maybe something was wrong with my home network so I called the company to come service it but there is nothing wrong with. Internet does not work on my work internet either. Super frustrating🤬🤬

I’m having the same problem my home internet 🛜 and WiFi work fine but and cell internet work fine but soon as I try to connect to public internet it will not let me connect to it and I have 17.3 so the issue is still not fixed 😠

It would appear that, much like my original response, the WiFI issues I previously described, have vanished.

At the risk of having this response removed, can anyone else verify?

I’m super 100% sure I’m only running 17.0.1 on an iPhone 15 Pro, and not an iOS 17.1 beta on an iPhone 12 Pro, for which these issues persisted *cough* iCloud Relay DNS *cough* 😉

Hello everyone,

Here’s a workaround until Apple can patch it soon!!!

The issue:

iPhone on iOS 17.0.1-3 joins home wifi network. It receives a DHCP address as it should, however the phone reports no internet. So the wifi is connected, but the internet doesn’t work.

All other devices on the network are working just fine.

You have rebooted your phone, rebooted your router and reset iOS network settings. None of that worked, it’s still broken.

Temp Fix:

Step 1: On your iPhone go to Settings>Wi-Fi>”your wifi network name”

Step 2: Toggle Private Network Address

that means, If it’s on, turn it off, if it’s off turn it on.

Each Phone reboot, you will need to toggle it. Keeping it on or off won’t fix the issue once the iPhone is restarted, or your DHCP lease expires.

Let me know if this resolves it for you.

I’ve tested this on 2 devices that have this issue on two different wifi networks.

Good Luck

Aha! That was the missing piece that I didn’t think of. The DHCP lease expiry, wish I had thought of that earlier.

On our corporate network, we had found that Private Wi-Fi Address had been toggled on for some devices during iOS 17 install, and InTune had not overridden this. Toggling this only sometimes cleared the issue. With two devices that were logged in to iCloud with the same AppleID, I think the affected settings synced between the two (good and bad).

Switching to Ethernet from wifi worked for my iPad. Perhaps this reset something in the network and forced a DHCP renewal.

Luckily, we found that 17.0.3 solved the issue for all of our remaining affected devices. Let’s hope that 17.1 is the cure for the rest of you!

I have tried everything in this forum and other articles online. I haven’t been able to use WiFi for like a month!! My Mac is also struggling to connect! I can’t believe Apple is allowing this to continue. This is atrocious service. Helloooooo!!!! Apple!!!!! Are you there?!?!

This morning I upgraded my iPhone 14 Pro to iOS 17.1 and immediately had issues with connecting to wifi. I came out to this forum and saw all of the issues that were being posted and tried all the fixes to no avail. As I was clearing papers off my desk I came across some notes I made (right after upgrading to 17.1) regarding my VPN. Bells went off. I went into Settings>VPN and touched the (i) on the old VPN that I had. The "Connect on Demand" button was on and the scroll wheel was going round and round. I turned off "Connect on Demand" and was immediately connected to wifi.

I don't know if this will help anyone out, but it was obviously my issue with connecting to wifi. Best of luck to all of you. Seems to be a very pervasive issue.

the following worked for my iPhone SE 2022 after upgrade from 16.1 to17.1. Now several other actions were taken prior to this such as disabling my vpn and several forced resets.

Solution 5. Turn Off/On Wi-Fi Assist

Some users have reported that disable and re-enable Wi-Fi Assist seems to help solve the Wi-Fi connection issue in iOS 16, 17. Go to Settings > Tap Cellular > Disable Wi-Fi Assist and turn it on again after a few seconds.

AHA!

I have all my devices' MAC addresses in the allowlist for my router. All other addresses are blocked.

As I waited for my iOS17.1 iPhone to get an upgrade to 'fix' whatever happened, I was surprised this morning when my 16.6.1 iPad which I hadn't used in a few days suddenly started to be unable to connect with my WiFi either.

On my router admin screen, I also noticed a device with a local IP address, but a MAC I didn't recognize. HMMM.

Then I looked at my iPad's Settings -> WiFi -> (my router name) screen and there was a Private WiFi Address switch and it was turned on. I turned the switch off and the address changed. And suddenly my iPad could connect.

I did this with my iPhone, and bada-bing, I'm back in the saddle again.

Apparently this feature is supposed to give you a different address for different networks, so no one can track your device across networks??? Whaaat? Did I ask for this? I connect to one network - mine. Why was this feature automatically on??? OMG!

I had this problem with both my cell and internet connections.

It turned out, somehow, my VPN connected to all my services, and blocked my connection. I have no idea how that spontaneously happened (which makes me think it was not spontaneous!)

So, if you have this issue, check your VPN!