WiFi is must if you are working on iMac or MacBook; at times, your Mac doesn’t respond to Wi-Fi signals or maybe there is an internal glitch and WiFi fails to work. In this situation, you can see a message appears on the screen: “Wi-Fi: No Hardware Installed”. There is an easy solution to this problem. This happened to me on my 2009 MacBook Pro, I tried all the software fixes to no avail. No WiFi Hardware Installed, Very frustrating, If you have a range of screwdrivers available and wish to. I decided to open up my MacBook Pro and investigate myself, if the problem was related to the Airport card. Jul 18, 2017 Fix Wi-Fi No Hardware Installed Mac OS X Issue There’s one very basic solution to fixing the ‘WiFi No hardware installed’ issue on Macintosh computers. In this solution, all the user has to do is resetting to parts in the system – SMC and NVRAM, and that solves the Wi-Fi: No Hardware Installed problem on almost every MacBook. Jul 18, 2017 Fix Wi-Fi No Hardware Installed Mac OS X Issue There’s one very basic solution to fixing the ‘WiFi No hardware installed’ issue on Macintosh computers. In this solution, all the user has to do is resetting to parts in the system – SMC and NVRAM, and that solves the Wi-Fi: No Hardware Installed problem on almost every MacBook.
HomeHow ToMacsFix WIFI No Hardware Installed on Mac
When you’re connected to the internet on your Mac, there’s a WIFI icon at the top that stays white. However, when your Mac detects a WIFI failure. The white WIFI button turns gray and has an X in it.
If you hover over the icon, you’ll see an error message saying, “WIFI: No Hardware Installed.”
If you require internet daily, and you don’t know how to fix this problem, it can be daunting since you’re not aware of what’s causing this problem. It usually occurs when: you’ve turned on your Mac: restarting your Mac, or after a software update.
The Reason the Error Occurs
The reason you’re seeing the error, “WI-FI: No Hardware Installed” is because your Wifi adapter isn’t installed properly. The WIFI adapter installed on your Mac can fail without any particular reason and this can cause your WIFI to stop working. You need to install of restart your WI-FI adapter to remove the error.
Installed Software Messing Up Wifi Mac To Tv1. Reset SMC your MacInstalled Software Messing Up Wifi Mac To Windows 7
The system management controller is an integrated circuit that is on the logic board of the MacBook or MacBook Pro.
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This integrated chip is responsible for the power management of your Mac. You can reset the SMC and it should remove the error message.
To reset the SMC:
2. NVRAM Reset
Nonvolatile random-access memory is a small memory that your Mac uses to store certain settings and access them quickly. Since the WIFI problem is related to your settings, resetting the NVRAM might help.
3. Reset PRAM
PRAM is a type of memory in your Mac that stores system settings. Since your WIFI adapter may be failing, resetting the PRAM might help to fix this.
To reset the PRAM:
Once your PRAM has been reset, you can check if the error message has gone. If this didn’t help the WIFI problem, you’ll need to install any software updates on your Mac.
4. Install Software Updates
If you have current software updates that haven’t been installed, installing them might fix the issue. If your software is out of date, then there may be a bug on your Mac that stops your WIFI from working.
You’ll first need to install any outstanding software updates on your Mac. Once these are installed, you’ll need to safe reboot your mac. To start up in safe mode: Restart your Mac, then immediately press and hold the Shift key.
The Apple logo appears on your display > Release the Shift key when you see the login window. Once you’ve done this, restart your Mac again and check if the error message has gone.
5. Rename .conf File
On your Mac, there’s a configuration file name /etc/sysctl.conf that’s responsible for the IPv4 forwarding parameter. This file was present in old Macs but in modern Mac, they’re not present and they can cause your WIFI adapter to fail.
To check if /etc/sysctl.conf is present on your Mac:
“ls -l /etc/sysctl.conf.” The terminal should tell you that there’s “No such file or directory.” This means that the file doesn’t exist. If you see “-rw-r–r– 1 root wheel 136 24 Nov 2013 /etc/sysctl.conf“ instead, it means that your Mac has the old sysctl.conf file.
Use Wi-Fi
Learn how to connect to an open, secure, or hidden Wi-Fi network. You can also create a new Wi-Fi network.
Connect to a Wi-Fi network
Click in the menu bar, then choose a network. If Wi-Fi is off, click , then select Turn Wi-Fi On.*
If you connect to a public Wi-Fi network, a window might appear with terms and conditions you're asked to agree to before you can connect.
Connect to a secure Wi-Fi network
Secure Wi-Fi networks are password-protected and have by their names.
Connect to a hidden network
Learn what to do if you can't connect to a hidden network.
Create a Wi-Fi network
If you have Internet service at your location, you can connect an AirPort base station or a third-party router to your modem to create a Wi-Fi network. Use the setup guide for your AirPort base station, or check your third-party router's manual for help.
* If you don't see the Wi-Fi icon in the menu bar, you can add it back. Choose Apple () menu > System Preferences, click Network, click Wi-Fi, then select 'Show Wi-Fi status in menu bar'.
Use Personal Hotspot
With most carrier plans, you can share the cellular data connection of your iPhone or iPad (Wi-Fi + Cellular) with your Mac.
Learn how to set up Personal Hotspot.
Use Ethernet![]()
To connect to the Internet over a wired connection, connect an Ethernet cable between your router or modem and the Ethernet port on your Mac.
Some Macs require an Ethernet adapter like the Belkin USB-C to Gigabit Ethernet Adapter, or the Apple Thunderbolt to Gigabit Ethernet Adapter.
Learn more
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December 2020
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