windows server 2012

I am getting this error on my windows server 2012 R2 from application logs

1) event ID: 4955
LICENSE ACTIVATION ( SLUI.EXE) failed with following error code


cant figure what is this error
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☠ MASQ ☠Commented:
It's a KMS error, can the computer see your KMS server?
pramod1Author Commented:
Which  computer
pramod1Author Commented:
I mean the s erverin question  if not what to do
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pramod1Author Commented:
Can it be due firewall issue or anything I can check on server
slmgr.vbs /dlv

To check the registration details. You should find kms name then
Test-NetConnection -computername <kms server> Port 1688 InformationLevel Detailed

From you server where the error is.
If successful the server can reach your kms.
-informationlevel Detailed

Can't test the command right now so syntax may be imprecise
pramod1Author Commented:
thanks, dont have access to server now , will check later
pramod1Author Commented:
So I can use slmgr in command prompt?
pramod1Author Commented:
Where do I find KMS server name
pramod1Author Commented:
It says test-net connection-computername not recognized
slmgr.vbs /dlv
should show wether the client is referencing a KMS host or not :look for KMS REGISTERED MACHINE NAME: servername:1688
to use KMS.. the client needs to be using KMS licensing.. so the key you enter on install should be a KMS key, and not a MAK key.
If you have a select contract type you can use a Kms and install KMS keys: here is a list
pramod1Author Commented:
I am on server when I type slmgr I see windows script host opens showing KMS machine name
pramod1Author Commented:
It already gives KMS machine pid
pramod1Author Commented:
Test-net connection is working on command prompt
pramod1Author Commented:
In detailed event log it says notification interval 1440 trigger user logo on sessionid =2

Can I run any tracery commmand to KMS server where it is failing
pramod1Author Commented:
It just says trace complete with 2 hops
pramod1Author Commented:
Sorry tester connection command is not working
Frim poweshell

Test-netconnection -computername insertkmshere -port 1688

Paste exact output
pramod1Author Commented:
But when I type slmgr:vb

I get KMS server details that means KMS is installed on this machine ?
pramod1Author Commented:
Is the server not able to contact kms host or license is not installed?
Step by step:
Paste the command output i asked above

Paste the slmgr message screen you asking about, your description is not accurate enough

Btw Run antivirus scan on the whole server

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Hi pramod, how did you solve?
pramod1Author Commented:
It was firewall issue
pramod1Author Commented:
Thanks for ur help also anti  virus scan helped
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