How to Fix Mac Wi-Fi Problems When it Doesn't Work

Let’s imagine a situation – you are working on your Mac, using the internet and suddenly the Wi-Fi stops working. Snap! It feels very annoying when the Wi-Fi is not working, right? In this day and age, Wi-Fi is probably one of the most important things and deemed by some hilarious internet memes, more important than food and water.

Mac Wi-Fi connectivity does face a lot of problems at times. Fast access to the internet is the norm and when it gets disrupted, it is really problematic. Basically, there are three primary reasons why your Mac Wi-Fi connection will be disrupted – your Mac won’t connect to the Wi-Fi, mac Wi-Fi connection is poor due to poor signal strength or your Wi-Fi is not working. If you are wondering what to do if your Wi-Fi is slow or not working, here are some solutions that will help you to know how to fix Mac Wi-Fi problems. Don’t fret, they are quite easy, just follow the steps and wind up your work.

Solution 1. Reset Wi-Fi Router

This is the first thing to do if your Mac won’t connect to Wi-Fi. Your router may be the cause of the problem, so consider turning it off and back on. To do that, firstly turn Wi-Fi off by clicking on the Wi-Fi logo in the Menu Bar and selecting ‘Turn Wi-Fi Off’.

Fix Wi-Fi problems-Reset Wi-Fi Router

After that is done, turn your router off for about 30 seconds, then plug it in and turn it back on. This should help reinstate your Mac Wi-Fi connectivity.

Solution 2: Reconnect the network

If the previous solution was ineffective, you must still be thinking what to do if your Wi-Fi is slow or not working, right? Reconnecting the network might help you. This often combats the problem of Wi-Fi not working so let’s go through the steps:

  1. Firstly, check your TCP/IP settings in the Network option in the System Preferences.
  2. ・ Go to “System Preferences” from Apple menu.
    ・ From “View”, choose “Network”.
    ・ Select Wi-Fi and click “Advanced button”.
    ・ Click the TCP/IP option.
    ・ Choose “Renew DHCP lease” option.

    Fix Wi-Fi problems-Reconnect the network

  3. Now, select the Wi-Fi menu and check the Preferred Networks list.
  4. ・ Select every network and remove them by clicking the minus (-) sign.
    ・ Click “OK”.

    Fix Wi-Fi problems-Reconnect the network-2

  5. Next, remove your stored network passwords via the Keychain Access Utility.
  6. ・ Open the Keychain Access from /Applications/Utilities.

    Fix Wi-Fi problems-Reconnect the network-3

  7. Remove your AirPort network passwords from the login keychain – choose “login” from the Keychain sidebar. Then click the “kind” column and arrange the keychain list by their type. Remove all such entries – “AirPort network password”.
  8. Remove your AirPort network passwords from the System keychain by selecting “System” from the Keychain sidebar and repeat the process mentioned in point 4 above.
  9. Now, restart your Mac and join your wifi network by entering the password.

These steps should answer your question on how to fix your Mac Wi-Fi problems. Keep in mind, this procedure will remove your Wi-Fi network passwords. If you are still stuck on what to do if your Wi-Fi is slow or not working, don’t worry. Let’s take a look at the next solution to fix your Mac Wi-Fi connection.

Solution 3: Check local signal

If the Wi-Fi is still not working on your mac and you are wondering how to fix your Mac’s Wi-Fi problems, analyzing the Wi-Fi’s signal may be of great help. Don’t worry, your Mac uses Wireless Diagnostics to perform the analysis.

  1. Firstly, quit all open apps and connect to your Wi-Fi network.
  2. Hold down the Option key and select ‘Open Wireless Diagnostics’ from the Wi-Fi status menu.
  3. Enter your administrator name and password.

Now, Wireless Diagnostics will check your Mac’s Wi-Fi connectivity.

If the issue of your Wi-Fi not working is intermittent, try monitoring the Wi-Fi connection as shown here below:

Fix Wi-Fi problems-Check local signal

Once you choose to monitor, Wireless Diagnostics will do its work even if the Mac is asleep.

If the Wireless Diagnostics finds any issue, it will stop monitoring and show a brief description of it, after which you continue monitoring or resume to the summary for details and recommendations. How convenient!

If your Mac won’t connect to the Wi-Fi, this solution can help and most of your work is done by Wireless Diagnostics itself.

Solution 4: Check Apple’s Wireless Diagnostics

If your Mac’s Wi-Fi connectivity issues are still not resolved and you are still confused about how to fix your Mac’s Wi-Fi problems, try using the Apple Diagnostics to check the Wi-Fi issues. Follow these few easy steps:

  1. Firstly, disconnect all external devices except the screen and keyboard.
  2. Now, shut down your Mac, then turn it back on while pressing and holding D.
  3. After choosing your language, wait as the progress bar shows that your Mac is being assessed.
  4. If problems are detected, Apple Diagnostics will give you solutions.

Easy, right? Running Apple Diagnostics is an efficient and easy way to solve your Mac’s Wi-Fi connection issues, so go ahead and try it!

Solution 5. Update Wi-Fi channel

If you are still wondering about what to do if your Wi-Fi is slow or not working, consider updating your Wi-Fi’s channel.

Routers generally select channels automatically. On the other hand, if you choose the “Scan” option from the Windows menu in Wireless Diagnostics and notice your router operating on the same channel as another router, you should consider updating it.

The steps required to change the channel depends on your router’s software. First, check the IP address of your router and type it into the address bar of your web browser and press Enter. This will reveal your router software; look for the channel information, log into your router and update it. Done!

Solution 6. Renew DNS setting for the network

If your Mac still won’t connect to Wi-Fi, the last solution is to renew DNS settings in these few easy steps:

  1. Go to system reference, and choose "Network".
  2. Click on “Advanced”.
  3. Fix Wi-Fi problems-Update Wi-Fi channel

  4. Choose “DNS” from network settings.
  5. Then, click on “+” icon.
  6. Type: 8.8.8.8 or 8.8.4.4 into the box and press Enter.
  7. Click “Okay”.
  8. Fix Wi-Fi problems-Update Wi-Fi channel-2

Conclusion

While Wi-Fi connectivity issues in Mac are not too major, they are very common and often, difficult to solve. In today’s generation, living without Internet is the same as living in a cave, so it is understandable why Wi-Fi connectivity issues really hit a nerve. If your Mac’s Wi-Fi is not working, you can always call an engineer or your network service provider, but if you are willing to solve the problem yourself or it is an emergency, try the solutions mentioned here and hopefully, the issues will be resolved.

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