Security and privacy setting problem

I have a MacBook Pro, school issued, and I have an administrator account. It is El Capitan version 10.11.4 running

For a few weeks and I don't know exactly when it started, it was disconnect automatically. In addition, when it disconnects me my password is not always recognized as correct, so I have to reboot to reconnect. I finally found the setting of security and confidentiality that is checked for disconnection after 30 minutes of inactivity and unchecked, it.  However changes to the settings I do not stay, I uncheck the box or change the amount of time before disconnection, he returns in this journal of 30 minutes setting. As a teacher in a busy class I find that more and more frustrating. I can't afford this waste of time if I need to show something to the class on the Board of directors or to find a resource. Can anyone help?

I guess you just change your connection password, but desynchronization between account password and login Keychain password. You need access to Keychain Access-> Preferences, select 'Synchronize password Keychain with account'. Preferences and access to quick access-> S.o.s. Keychain keychain and repair.

Tags: Notebooks

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