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pc can't find domain

we have a about 2 pcs that have this error message.... domain controller unavailable. it was working fine yesterday. we have to dejoin and rejoin the pc back in order to login. other pcs no problems. what could be the cause of this error?
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grnow
Asked:
grnow
5 Solutions
 
Joseph DalyCommented:
It sounds to me like the computer accounts may have been deleted from active directory. Every computer that logs into a domain needs to have a corresponding computer account stored in active directory. If for some reason this computer account gets deleted or reset the computer will display the message you are seeing.

From your description this seems the case especially since you mentioned that you had to disjoin/rejoin the domain to make it work again. If there were an existing computer account in the domain you would not be able to rejoin with the same name as this would attempt to make a duplicate computer account.

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grnowAuthor Commented:
i have checked in the active directory. the computer account is still there, as we disjoin and rejoin using the same name.. you mentions the computer being reset, how does it happen?
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vAdminCommented:
This looks like the computer SID were affected by some reason, like computer account reset, this is done in the Active Directory Users and Computers where the computers account are placed. In there if you make a right click over a computer account you will have the reset account option. If a computer account is resetted you will have that behaviour, but also a duplicated SID can cause  this to happen, for example when you deploy a computer image using Norton Ghost or WMS and dont create new SID, this could also happens.
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Joseph DalyCommented:
Well you can right click on the computer object and select reset to do it manually from within ADUC. I have also seen other times when a computer account is still in AD but somehow the link between the computer and computer account can become "broken" for lack of a better term. As to the root causes I am not sure what would cause a computer account to be reset unintentionally.
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matiaslCommented:
You don't have two computers with the same host name ?
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grnowAuthor Commented:
no, i don't have 2 computers with the same host name.
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HelpdesksupportCommented:
Try uninstalling the network driver or if you have a spare network card put that in. It worked for me.
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grnowAuthor Commented:
we change the secondary DNS and so far so good. shall close the qn and award points for suggestion
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