KB: ForeFront UAG returns “An unknown error occurred while processing the certificate” error when the backend application server SSL certificate fails CRL check

UAG willl validate backend application server’s SSL certificate and the error may happens with self signing certificate for testing purpose.

Solution:
1) Use certificate which can pass CRL validation
2) Disable CRL check by changing the following registry key in UAG HKEY_LOCAL_MACHINE\SOFTWARE\WhaleCom\e-Gap\Von\URLFilter\Comm\SSL
Change “ValidateRwsCertCRL” from 1 to 0

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