Might work through this one.
https://learn.microsoft.com/en-us/troubleshoot/windows-server/remote/cannot-connect-rds-no-license-server
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Upgrade Windows Server 2016 to Windows Server 2019,remote desktop license issue?
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Anonymous
After the upgrade of AWS EC2 Windows Server, there is a remote connection problem and the system is not activated. What should I do? Do I need the key to reactivate the system?
Windows for business | Windows Server | User experience | Other
Answer accepted by question author
Anonymous
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Anonymous
2022-02-17T03:22:59.943+00:00 How do I obtain the certificate? How do I replace it?
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Anonymous
2022-02-17T03:24:10.623+00:00 What certificate are you asking about?
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Anonymous
2022-02-17T03:35:39.967+00:00 My certificate is invalid after Windows upgrade, how should I replace it，This tutorial only has RD Licensing Configuration, but my certificate is Windows Server 2016, now my Windows Server is Windows Server 2019, RD has been set, I only need to replace the certificate, what should I do
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Anonymous
2022-02-17T03:39:40.857+00:00 Do you have a screen shot? What certificate?
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Anonymous
2022-02-17T03:49:00.67+00:00 The 2016 RDS Cals can only be used to connect to a 2016 RDS host. If the RDS host is now Server 2019 then you'll need new Cals
You can't use RDS CALs for earlier versions to access later versions of Windows Server, but you can use later versions of RDS CALs to access earlier versions of Windows Server.
https://learn.microsoft.com/en-us/windows-server/remote/remote-desktop-services/rds-client-access-license#rds-cal-version-compatibility
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Limitless Technology 40,101 Reputation points2022-02-16T15:28:21.513+00:00 Hello @Anonymous
Since this is a behavior produced after the upgrade of the system in Amazon Web Services, and no changes were made to the Windows system, you should direct the question to an Amazon Web Services Forum, as their community would be more experience in the effects of this changes and how to resolve it.
Hope this helps with your query,
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Anonymous
2022-02-17T01:54:54.11+00:00 How do I replace the remote desktop connection certificate? Is there a tutorial?
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