Remote Desktop still using old Cert

Hello,

I have updated my Remote Desktop Sever with a new self signed certificate but when the client tries to run the app it still errors due to the old certificate.  

How do I get the system to use the new certificate?  

Do I have to delete the old one?  

Do I have to install the certificate on the VM server that runs the app?

Thanks,
~AJ
ajthomas12Asked:
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MaheshArchitectCommented:
on rds server, run below command from elevated cmd

wmic /namespace:\\root\CIMV2\TerminalServices PATH Win32_TSGeneralSetting Set SSLCertificateSHA1Hash="Thumbprint"

Open in new window


replace thumb print with new certificate, remove spaces in thumbprint before pasting in command
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Prabhin MPEngineer-TechOPSCommented:
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ajthomas12Author Commented:
Thanks for trying to help.

The answer to my questions were:

To get the new cert to be used I had to install it in IIS Manager and remove the old expired one.

No you don't have to install the cert on the VM that runs the app.

Here are the links I found most helpful in purchasing a new wild card cert and installing it on my Remote Desktop Services server and Active Directory server.

Links Used to troubleshoot the expiring Certificate issue:  10/08/18

Remote Desktop Services:
http://www.vkernel.ro/blog/configuring-certificates-in-2012r2-remote-desktop-services-rds
https://ryanmangansitblog.com/2013/03/10/configuring-rds-2012-certificates-and-sso/

Deploy the certificate using Group Policy Objects:
https://specopssoft.com/support-docs/specops-password-reset/reference-material/installing-the-self-signed-ssl-certificate-into-the-trusted-root-certificate-authorities-store/

Group Policy Management Editor:
https://blogs.technet.microsoft.com/askpfeplat/2017/12/18/remote-desktop-connection-rdp-certificate-warnings/

SSL2Buy.com where I purchased the cert.

Created CSR (Certificate Signing Request) in IIS:
https://www.digicert.com/csr-ssl-installation/iis-8-and-8.5.htm

How I exported the pfx file from the installed cert:
https://www.digicert.com/ssl-support/certificate-pfx-file-export-import-iis-10.htm#export-pfx
https://www.digicert.com/ssl-support/pfx-import-export-iis-8.htm

How I fixed the protocol error I was getting when I tried to launch an RDS app on my windows8 machine:
https://help.remotedesktopmanager.com/index.html?troubleshooting_protocolerror.htm

Hope you find this helpful,
~AJ
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MaheshArchitectCommented:
Hello
The question you have asked and long answer provided by you did not have any correlation
Unless you ask question correctly and enough information nobody can understand whats going in ur mind and what could be the real issue and u will never get correct answer
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