If you notice the shared link shows the New URL which is: https://fde-nonceapi-b2b-prd-na-gkf3gmc8amfbckcy.a01.azurefd.net For example: " *fde-nonceapi-b2b-prd-na-gkf3gmc8amfbckcy.a01.azurefd.net/health " Here is the documentation for reference: https://documentation.meraki.com/MX/Content_Filtering_and_Threat_Protection/Content_Filtering Allow 10-15min to make sure the changes took affect. If the issue is still ongoing, change the policy to one of the affected clients to be allow-list as this will bypass all the Meraki rules, check the below documentation if you are unsure how to apply it, scroll down to "using client list": https://documentation.meraki.com/General_Administration/Cross-Platform_Content/Blocking_and_Allowing_Clients Wait 10-15min and recheck if it works then check the other applied policies in the network. If still the same check the upstream devices.
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