Macs fallen off Windows Domain

[Techdw]

Hi Guys,

 

Need some help on this, We have a Macserver and running Windows 2008r2.

 

Now I can get the Macs to the Macserver and to the DC but after a while the macs wont connect to the DC, and I have to log onto each mac and try and reconnect it again, other wise a student cannot log on.

 

Any help would be great.

 

Cheers

[sted]

how far out is the macs clock compared to the dc?

[marekbrad]

Configuring Time In OS X Mountain Lion & OS X Mountain Lion Server | Krypted.com

 

gives instructions on setting NTP server

 

We had this issue and it was always timeserver related

[Carter]

By chance do you freeze your Macs?

I ask this because if you do then I would say it's the AD Password Interval. This would cause the computers to drop off of AD after aprox. 14 days though still look like it's on the network with AD.

[Tsonga]

I will third this as a time issue. If you have a mac server with WGM, set the time server as your DC for all the clients.

[MrWu]

Fourth vote for this, We found our Macs were drifting off by more than 5 minutes and started having login problems with MAC Clients with the AD