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MACs unbind and rebind to domain daily

Posted on 2011-03-06
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Last Modified: 2013-12-06
Hello, we have several labs with MACs on our network. Just recently, the MACs started having issues authenticating to our Windows 2003 AD. They show a red dot at login which I believe means that the MAC isn't finding the login server. If we login locally, unbind and rebind it to the domain, the MACs seem to work fine for about a day. Then soon after the cylce starts all over again where the user can't authenticate and we have to unbind and rebind the MAC to the network.

We've looked at the logs on the domain controllers and we see no problems at all. I think this might have started to happen when the client starting moving the MAC computer accounts to different OU's in AD but I'm not positive.

The MAC version is 10.4.11
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Question by:StarfishTech
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5 Comments
 
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Expert Comment

by:Justin Yeung
ID: 35050213
usually it is caused by time server on Mac.

go to preferences --> date & time --> change the time server address to your logon domain controller
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Author Comment

by:StarfishTech
ID: 35051975
I'm "thinking" that the MACs are already pointing to the dc? I'll confirm but if that is the case, then what?
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Expert Comment

by:Justin Yeung
ID: 35055622
make sure computer name is not longer than 15 characters.

also the directory utitlity, check if it is logon to all domain controller. or just a specificed domain
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Author Comment

by:StarfishTech
ID: 35057026
Hi, I talked some more with the client today. They tell me that they tried pointing the macs to the DC via IP and manually setting them as well. They still kick off within a couple of logouts or restarts. They've also manually set the time off by about 30 minutes, then resynced them. They sync time perfectly fine back to normaly yet still the issue persists. They've also tried deleting the AD accounts for these MACs within the OU and recreated them via a re-bind.

I've also posted a screenshot of the error.
screen-capture.png
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Accepted Solution

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Justin Yeung earned 500 total points
ID: 35070719
it is for sure now it is a time issue. can you check what is your default time server on your network?
is there any other specificed NTP server?

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