In the DMT Console, receiving: Error while impersonating [my user name] Cannot establish a connection to the ARSystem server [admin server alias]:[TCP]

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Knowledge Article

In the DMT Console, receiving: Error while impersonating [my user name] Cannot establish a connection to the ARSystem server [admin server alias]:[TCP]
Receiving the following error in the Load Error log from the DMT Console and also in the arjavaplugin log on the non admin server:

Error Connecting to ARSystem
Error while impersonating [my user name] Cannot establish a connection to the ARSystem server [admin server alias]:[TCP]
Remedy IT Service Management Suite
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Receiving the following error in the Load Error log from the DMT Console and also in the arjavaplugin log on the non admin server:

Error Connecting to ARSystem
Error while impersonating [my user name] Cannot establish a connection to the ARSystem server [admin server alias]:[TCP]
A server alias was being used, but it was not resolvable to a valid server name on the server.
This knowledge article may contain information that does not apply to version 21.05 or later which runs in a container environment. Please refer to Article Number 000385088 for more information about troubleshooting BMC products in containers.

Add the alias name to the hosts file to loopback to localhost/127.0.0.1.

Here are the detailed steps:

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Under C:\Windows\System32\drivers\etc
Find the hosts file

Edit the file
Change the below line:
#    127.0.0.1       localhost

to
127.0.0.1       localhost      <alias name>
==========
Remedy IT Service Management Suite
Remedy ITSM Foundation
UDM
Remedy IT Service Management Suite
Remedy ITSM Foundation
UDM
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