Krb5kdc + Wrong OS Time + Losing Wifi Password on start up ...

hi i just turned on my mac book pro running the latest snow leopard version and suddenly a pop up about krb5kdc and mDNSResponder showed up asking me for approval and then i noticed that my home wifi showed up but the saved password was gone and also my email accounts were no longer logged in on iMail. Also the OS Clock resets everytime i restart now
what's going on i didnt even install anything when i turned it off last night ...

Okay.
I rebooted and everything's back to normal.
So it looks like for some reason the date and time occasionally reset on boot.
William Kucharski told us that:
…because the time is wrong, the keychain entries for krb5kdc, mDNSResponder and your AirPort network's password aren't accessible (since the time is too "early" for their keychain entries to be valid.) …
So these keychains must hold the keys to a lot of the security configuration (firewall, AirPort passwords, FileVault data, etc.) . Since these keychains are inaccessible, those configurations can't be unlocked and are therefore inaccessible. So Snow Leopard resets them. And that's why it asks you stuff about the firewall and says “Access to this item is restricted.” whenever you try to get data from Keychain Access. I imagine that it would probably prevent FileVault users from logging in.

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Krb5kdc + Wrong OS Time + Losing Wifi Password on start up ...

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