WiFi not working on iPhone after iOS 17 Update/Slow WiFi – FIX

WiFi not working on iPhone after iOS 17 Update

Apple recently released an iOS 17 update with the new iPhone 15 series launch. However, the new iOS 17 update is creating lots of issues with the older iPhone models. Even, there was a heating issue with the new iPhone 15 series. But, apple solved it with the iOS 17.0.3 update. However, there is still one more issue, which older iPhone users face widely. Many users are reporting that WiFi not working on the iPhone after the iOS 17 Update. Or, the Internet is working quite slowly when connected to WiFi. But, the Internet works well when connected to Mobile/Cellular Data.

Yes, last year iOS 16 users also faced a similar issue with their iPhones. So, this issue can be fixed, do follow each solution mentioned in this article. Moreover, if the iPhone Battery Draining Fast after the iOS 17 Update. Then, read my article on it to fix that issue as well.

Solutions: WiFi not working on iPhone after iOS 17 Update

Solution 1: Reset Network Settings.

If you’re facing any kind of network-related issue with your iPhone. Then, after resetting the network settings of your iPhone, the problem will be resolved. Resetting network settings will not erase any data. It will not delete your eSIM, but it will delete your saved WiFi passwords.

Take WiFi Password Backup – Go to Settings > Wi-Fi > Tap on Connected WiFi network > Tap on Password to reveal using Face ID. Now, copy and paste the password somewhere safe. You can use the Notes App.

  1. Do open Settings App.
  1. Tap on General.
  1. Scroll down and tap on “Transfer or Reset iPhone”.
  1. Tap on Reset.
Reset Settings in iOS 17
  1. That’s it, now tap on “Reset Network Settings”.
Reset Network Settings WiFi not working on iPhone after iOS 17 Update

Note: The Apple logo will appear and the iPhone will reset network settings. So, don’t interrupt the reset process.

  1. Once, the iPhone network settings get reset. Open Wi-Fi settings and connect to your WiFi network. Hopefully, Wi-Fi will now work flawlessly.

Solution 2: Turn off Wi-Fi Assist.

If your Wi-Fi is working on your iPhone, but, gets too slow sometimes. Then, it might be due to the Wi-Fi Assist option being enabled. Because of this feature, the iPhone uses mobile data when Wi-Fi connectivity is poor. So, it would be better if you disable it.

  1. Do open the Settings App.
  1. Tap on Mobile Service.
  1. Scroll down and disable the “Wi-Fi Assist” option.
Disable Wi-Fi Assist WiFi not working on iPhone
  1. That’s it, now your iPhone will not switch to mobile data automatically.

Solution 3: Turn off Low Data Mode

If the WiFi speed on your iPhone is slow compared to other devices. Then, it could be possible that the “Low Data Mode” option is enabled. The Low Data Mode basically reduce your iPhone data usage over WiFi or Cellular Network. It also disables automatic updates and background tasks. Disabling this feature might help you to fix this issue.

  1. Open Settings App.
  1. Tap on Wi-Fi.
  1. Now, tap on the connected Wi-Fi network.
  1. That’s it, now do disable the “Low Data Mode”. Do this for all Wi-Fi networks that you use on your iPhone.
Disable Low Data Mode WiFi Not working

Solution 4: Check VPN Settings

If you’re using a VPN connection, then you will not get the actual speed of your WiFi Connection. Or, sometimes, WiFi doesn’t even work, if bad VPN settings are configured.

  1. Open Settings App.
  1. Tap on General Option.
  1. In the General Settings, scroll down and tap on “VPN & Device Management”.
  1. Now, make sure the VPN is Not Connected.
Disable VPN & Device Management on iPhone

If the VPN is connected disconnect it and delete VPN Profile, if not required.

Solution 5: Enable Unrestricted Access of Safari

If in Safari browser, websites are loading slowly, or some sites are not opening. Then, you have to enable “Unrestricted Access” from Settings. The Restricted Access disables private browsing. Due to this, Apps that use WebView also don’t work on Wi-Fi. Here’s how to fix it.

  1. Do open the Settings App on your iPhone.
  1. Tap on Screen Time.
  1. Scroll down and tap on the “Content & Private Restrictions” option.
  1. Tap on “Content Restrictions”. And, do enter your Screen Time Passcode”.
Enable Content & Privacy Restrictions
  1. Do tap on Web Content, and select the “Unrestricted” option.
Unrestricted Access WiFi not working on iPhone after iOS 17 Update
  1. That’s it, now open Safari Browser. Check Private Browsing option is enabled or not. If not then do close Safari Browser once and reopen it.

Solution 6: Make Chrome Browser your Default Browser

Many users are reporting that, after the iOS update, websites are not getting open in Safari. So, if you’re experiencing the same issue. Then, you can do nothing about it.

What you can do is, install Chrome Web Browser from the App Store and make it your default browser.

  1. Open the App Store and Install the Google Chrome browser.
Install Google Chrome on App Store
  1. Open the Chrome App and sign in using your Google Account.
  1. The “Turn on Sync” screen will appear. Tap on “Yes, I’m In” or “No Thanks”.
  1. Next, the “Use Chrome by default” screen will appear. Tap on “Make default in settings…”.
  1. Chrome Settings will open. Tap on “Default Browser App”.
Make Chrome Default Browser App
  1. Now, select Chrome as Default Browser App.
Select Chrome as your Default Browser

That’s it, Chrome is now your default Browser App instead of Safari. You can switch back to Safari anytime.

Solution 7: Turn off Low Power Mode

Yes, even if Low Power Mode is enabled your WiFi will work slowly. So, do disable “Low Power Mode”, when it’s in no use. You can do it from the Control Centre.

  1. Open Settings App. Scroll down and tap on Battery.
  1. That’s it, now disable “Low Power Mode”.
Turn Off Low Power Mode

Solution 8: Change your Router

If WiFi and Ethernet Connection work fine on other Android Smartphones and computers. Then, it might be possible that your WiFi router got old. First, connect your iPhone to a different WiFi network. If WiFi works fine then the issue is with your Router.