Hello,
There is no such option, which enables to turn CRL verification on or off, and basically, it's not recommended to turn it off.
Based on the official
documentation, you must make sure that the ATA Center and ATA Gateways have access to your CRL distribution point, if you don't have Internet access, you can follow the procedure in the article below to manually import a CRL.
https://docs.microsoft.com/en-us/previous-versions/tn-archive/aa996972(v=exchg.65)
Best regards,
Andy Liu
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