Hello,

We are getting this security error on the AD server. what is the reason to this? there is no client as c3s-client2$



Authentication Ticket Request:
User Name: c3s-client2$
Supplied Realm Name: CELL_DMH.NET
User ID: -
Service Name: krbtgt/CELL_DMH.NET
Service ID: -
Ticket Options: 0x40810010
Result Code: 0x6
Ticket Encryption Type: -
Pre-Authentication Type: -
Client Address: 10.1.100.50

Hello,

any one have a idea about this issue? please help me to identify the issue.

Manawa, this is a PC name.
You need to identify the PC then check from there.
I don't think this is related to KAV.
Please refer to Micosoft support site.

thanks for the reply. we have check but there is no such a pc in this network. seems to be this is a virus infection.
any ideas?

Check the IP belong to which PC, if DHCP, Force to stop the access from DHCP server.
Sorry no idea.

Failure Code 12 means that the logon failed because of time-of-day or
workstation restrictions. 10.1.100.50 means from your network.
Servise "krbtgt" from Kerberos. Ask Microsoft.