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"Administration Server has untrusted self signed certificate" error in Web Console [KSC for Windows]

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When login to KSC Web Console, it shows the following error:

Administration Server uses an untrusted self-signed certificate. Please modify the application configuration by specifying a valid certificate for Administration Server.

Alternative wording (for older KSC versions):
Administration Server has untrusted self signed certificate. Please, reconfigure the application with correct certificate for Administration Server.



KSC certificate is set when Web Console is installing. If there are any changes/errors with the certificate after the installation, KSC Web Console will show this error, e.g. you installed Web Console with KSC together, then restore a KSC backup.

Solution and Source:

Change certificate in KSC. 

Specifying certificates for trusted Administration Servers - guide on specifying a new certificate

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