Mac OS X 10.15 problem with wifi

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Level 1

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Mac OS X 10.15 problem with wifi

Yesterday I upgraded my MacBook Pro (2012) to Catalina OS X 10.15. The install went without a hitch and all functionality, including wifi, was normal. This morning everything was still working as expected. This afternoon I tried to do a simple web search and it was still working fine until all of a sudden I could not reach any web site. When I checked to see if I was still connected to my wifi router the message "WiFi: Looking for networks" appeared for a few seconds, then changed to "WiFi: on" and now toggles back and forth every few seconds. I know that the router and network are functioning normally because I am using it from my iPad to enter this question. I've tried to reboot the Mac but the problem persists. AAARRRRGGGGHHH!

MacBook Pro 15", macOS 10.15

Posted on Oct 18, 2019 3:48 PM

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Answer 1

Top-ranking reply

JAKaye Author

Level 1

6 points

Oct 19, 2019 3:19 AM in response to ManSinha

Thanks for the suggestion. As it turns out, this morning I was able to get on the web again with no problems, so I am now more puzzled than ever. Hope it was just some sort of transient bug, but if not I'll post a new question.

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Answer 2

ManSinha

Level 6

12,177 points

Oct 18, 2019 4:12 PM in response to JAKaye

Please perform the following actions and after each one test to see if the problem is resolved - if so then you can omit the following steps - I have tried to list them in order of increasing effort at least on a Mac and / or an iDevice

Check to see if the problem is isolated to one device and if other devices connect normally -

If the answer to 1 is "yes" - try to connect the affected device in another location if possible - café or university

Please see Apple's recommended settings for Wi-Fi routers and access points

Settings - WiFi - <network name> - Click on forget the network - do a forced restart as per 4 and then add the network again

If at home - reboot the router by unplugging for 60 seconds from the AC (mains) and then plug it back in - obviously this step cannot be done in a public place as a café/airport or university. While you are at it - make sure your router is operating on the latest firmware (check manufacturer site)

Settings - General - Reset - Reset Network Settings - remember to have WiFi passwords handy since this erases stored WiFi passwords

If this is a net new device especially in your home - make sure the router is giving enough DNS numbers to accommodate everything that needs / wants a connection - stuff like the printer, Chromecast get overlooked - ask for details about this if not sure

Backup the device to iTunes - Restore as NEW (not from backup) using iTunes - see if problem resolves - if yes - restore backup

Make a "Genius" appointment at an Apple Store, or go to another authorized service provider.

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Mac OS X 10.15 problem with wifi

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