Kerio Control Web Filter Is Not Activated Categorization Is Disabled Hot ^new^

Kerio caches category data locally. If the cache database becomes corrupted (e.g., after an unclean shutdown or power outage), the service refuses to start.

The keyword "hot" likely refers to the urgency of this issue. Because disabling categorization directly impacts security and compliance (e.g., allowing access to malware or explicit content), administrators need a hot fix immediately. Kerio caches category data locally

Start with and Step 5 (DNS) – these resolve the majority of "hot" support tickets. For persistent issues, enable debug logs and contact GFI support with the output. Redirect all DNS queries to a service like

Redirect all DNS queries to a service like OpenDNS FamilyShield ( 208.67.222.123 and 208.67.220.123 ) or Cloudflare Gateway. This provides category-based filtering outside Kerio Control. Kerio caches category data locally

Configure specific to prevent this from happening again. Let me know which step you'd like to try first.

Allow these destinations from the Kerio Control appliance (not just LAN clients):

: After making the necessary changes (enabling the web filter and categorization), apply the changes. You might need to update the filter database if it's outdated.