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Machine Account Authentication

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by drporter

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I occasionally get this entry in the event log of several different PDCs on different networks (see below).

I spoke with a couple of support techs at Microsoft but neither of them could tell me what is going on. (Well both said that the securechannel between the PDC and BDC had been lost at that I should use a utility called NETDOM (?) to re-establish the secure link. That would be great if I had a PDC on either of these small networks, so I don't think that will work).

I searched the Microsoft KB ad infinitum and have come up with nothing on this. If you can offer any assistance, I would be thankful.

David

Event ID: 5722
Source: Netlogon
Type: Error

The session setup from the computer INV1 failed to authenticate.The name of the account referenced in the security database is INV1$. The following error occurred:
Access is denied.

6 replies

by drporter

That's about as close as I've seen anyone come to answering this. Except I don't have the SERVERS global group the article states is the reason for this error.

by scott.fuhriman

I too found the article KB article referred to by ASyscoKid@aol.com and that could be the issue.

As well I found the KB article Q150518 which explains the NETDOM command to reset the secure channel that is established in NT.

The NETDOM should probably be run on the BDC that is generating the error in the event log. Microsoft seems to have the right idea on this one.

"The NETDOM command line utility makes it possible to reset the secure channel of the BDC. This can be very useful when the NetLogon service on the BDC cannot start due to a secure channel problem.

The BDC secure channel can be reset as follows:

NETDOM BDC mybdc /RESET

The utility is found in the Resource Kit Supplement 2. If you do not have access tothis, I may be able to get it for you - just email me.

by drporter

I appreciate your response. If you look more closely at my post you will notice that there is no BDC in this scenario. It is a small network (14 NTW PCs) and a single PDC. That is why I said that the Microsoft answer didn't apply.

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