You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

The WiFi service does not turn on

WiFi suddenly turns off when working with the Internet, after which it does not turn on. Sometimes a reboot helps. After updating or changing the operating system to Mojave, the WiFi service works fine, it does not turn off for about 1-2 months. After that, the problems reappear. I attach a video recording of the screen. The video shows Catalina OS has now been updated to BigSur the problem has not disappeared




[Link Edited by Moderator]

iMac 27″ 5K, macOS 11.6

Posted on Oct 13, 2021 9:27 AM

Reply
Question marked as Top-ranking reply

Posted on Oct 13, 2021 9:31 AM

sprimak wrote:

WiFi suddenly turns off when working with the Internet, after which it does not turn on. Sometimes a reboot helps. After updating or changing the operating system to Mojave, the WiFi service works fine, it does not turn off for about 1-2 months. After that, the problems reappear. I attach a video recording of the screen. The video shows Catalina OS has now been updated to BigSur the problem has not disappeared



[Link Edited by Moderator]



Intermittent hardware issues are extremely hard to diagnose —


You can try and run the user Diagnostic...not as definitive as Apple's own AST2 (Apple Service Toolkit) back bench diagnostic, but may kick out an error code.


Use Apple Diagnostics to test your Mac

https://support.apple.com/en-us/HT202731



If no resolve—In or out of warranty you can get a free over the counter 'Apple Service Diagnostics' test /assessment

Make an appointment for a "hardware issue"—

https://www.apple.com/retail/geniusbar/


Outside the USA

https://locate.apple.com/country


Similar questions

2 replies
Question marked as Top-ranking reply

Oct 13, 2021 9:31 AM in response to sprimak

sprimak wrote:

WiFi suddenly turns off when working with the Internet, after which it does not turn on. Sometimes a reboot helps. After updating or changing the operating system to Mojave, the WiFi service works fine, it does not turn off for about 1-2 months. After that, the problems reappear. I attach a video recording of the screen. The video shows Catalina OS has now been updated to BigSur the problem has not disappeared



[Link Edited by Moderator]



Intermittent hardware issues are extremely hard to diagnose —


You can try and run the user Diagnostic...not as definitive as Apple's own AST2 (Apple Service Toolkit) back bench diagnostic, but may kick out an error code.


Use Apple Diagnostics to test your Mac

https://support.apple.com/en-us/HT202731



If no resolve—In or out of warranty you can get a free over the counter 'Apple Service Diagnostics' test /assessment

Make an appointment for a "hardware issue"—

https://www.apple.com/retail/geniusbar/


Outside the USA

https://locate.apple.com/country


The WiFi service does not turn on

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.