Use The Computer Name As The Username But “Unkown Computer”

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Issue Description

The authentication method is Open Auth. Some users use the computer name as the user name, but the computer name cannot be obtained. The user name displays “unkown computer“.

Handling Process

1. Check the authentication policy. The IP address of the faulty computer is 10.1.3.101. The authentication policy matches Open Auth, and the computer name is used as the username.
2. The way the IAM obtains the computer name is obtained through the NETBIOS protocol. The packet analysis is performed. The port number is port 137. When the packet is found, the IAM(10.1.3.4) has requested the computer name from 10.1.3.101, but the PC does not reply the packet. Thus positioning is a PC or network problem.
3.The network is a 2-layer environment, there is no other device interception in the network environment, check the computer network port configuration, in the [Advanced TCP / IP Settings] found that the NETBIOS protocol is disabled.
4. Change the Disabled state to the Enabled state, and then re-authenticate, you can go online with the computer name.
Root Cause
PC does not have NETBIOS protocol enabled.

Solution

Enable the NETBIOS protocol of the PC operating system.

Faisal Posted 20 Aug 2020 09:12
  
Thank you very much for the information ...
Faisal Posted 23 Oct 2020 08:47
  
Nice article ...
Faisal Posted 17 Dec 2020 08:49
  
Great info ...
Ellechar Lv4Posted 26 Jan 2021 15:12
  
Very nice infoooooooooooooooooooooooooooooo
Ellechar Lv4Posted 27 Jan 2021 09:26
  
Very nice infoooooooooooooooooooooooooooooo
Faisal Posted 19 Mar 2021 07:11
  
Very informative …
Faisal Posted 04 Jun 2021 11:00
  
Nice guidance ...

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Doc ID: 2313
Author: God
Updated: 2019-12-23 09:46
Version: