El Capitan forget password WiFi

I own a MacBook Pro 13 "retina early 2015 3.1 GHz i7 16 GB RAM running El Capitan 10.11.5 (currently the latest version).

The problem is that whenever I re - attach a known WiFi system forgets the password and asks me to re - enter manually.

Here is a more intriguing symptom: the issue is not with * every * known network. Just with those that I joined after initially, I transferred my data on this laptop from my Mac earlier, a MacBook Air mid-2012 Mavericks running. Those that were already stored on my previous mac work seamlessly.

"Networks do not forget that this computer has joined" are checked, and I can verify that the new networks are indeed remembered. Passwords are not well.

I tried a few non-destructive solutions, I found on these forums of discussion, such as checking the permissions of various files/Liberti/Preferences/SystemConfiguration .plist (all are root.wheel 644 and last modified dates of some files are right now, so I know that the system can write to these files) and delete and reset some of the stored WiFi networks. But no solution has worked so far. I'm not ready to delete the completely SystemConfiguration folder and the system of re - create from scratch, because my "WiFi" database now includes more than 100 WiFis that I use from time to time, so I don't want to go to the hassle of re - initialize them all again. I am willing to reset the PRAM or re-install the operating system.

I've read dozens of similar complaints, but none match my specific situation. I suspect a file that somewhere may have incorrect permissions, with these permissions are poorly defined by the migration program, but it's just a theory.

Finally, I used so far each MacOSX version and El Capitan is the first one who behaves in this way.

By/Liberti/Preferences/SystemConfiguration, I meant/Library/Preferences/SystemConfiguration (automatic correctors, ha!)

Tags: Mac OS & System Software

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