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Digicert Firewall Rules


Technical Teams, Security Admins, Developers


When using a Meraki Firewall, Olo Services that are signed by Digicert will not start. Windows times out with a 1053 error. So far we have only seen the issue with Meraki firewalls, but there may be other cases.

Associated Symptom:

Your Olo Services will not start so that your local service can connect to Olo and the Olo service will not generate a log. 

Configuring for Digicert

Edit the Meraki Firewall configuration as depicted here:


From Digicert:

Domains and IP address for our OCSP and CRL servers. These are the servers that are checking the certificate to see if it is valid and you will want to add to the firewall.


Digicert contact: DigiCert Support <>



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