**__Windows client:__** \\
slmgr /act  >> Will activate the license against KMS\\
slmgr /rearm >> will reinitialize CMID but will also remove current count on KMS (useful for VDI to count all activation)\\


**__Windows server:__** \\
slmgr /dli  >> Display the current license information with activation status and partial product key.\\
slmgr /dlv  >> Display additional license information. Similar to /dli but more detailed.\\
slmgr /dlv {product ID} >> Display additional license information about specific product. \\
  Office 2019 : 70512334-47B4-44DB-A233-BE5EA33B914C\\
  Office 2021 : 7F3B983-7C53-4D45-ABC6-BCD91E2DD90A\\
  

To allow server to activate Office licenses you must install Office license package that you get from Microsoft website \\
Ex: https://www.microsoft.com/en-us/download/details.aspx?id=57342\\


Check that DNS record is correct:\\
<cli type=dos>nslookup -type=srv _vlms._tcp
Server:  fqdn
Address:  XX.XX.XX.XX

*** FQDN can't find _vlms._tcp: Non-existent domain</cli>
Test connection to server 
<cli type=dos>Test-NetConnection your-kms-server-name –Port 1688</cli>\\
\\
**__Office client:__**\\
Navigate in Office folder Ex: C:\Program Files (x86)\Microsoft Office\Office16\\
Activate product: 
<cli type=dos>cscript ospp.vbs /act</cli>
Check license status
<cli type=dos>cscript ospp.vbs /dstatusall</cli>