Kerio Control Web Filter Is Not Activated Categorization Is Disabled Fixed [EXCLUSIVE]

Check your forwarder settings. If you are using ISP-provided DNS servers that are unstable, replace them with reliable public DNS resolvers.

SSL/TLS connections to update servers fail if your system clock is wrong. Go to > Advanced Options > Time Server . Enable NTP synchronization. Ensure the Time Zone matches your actual location. 5. Check Proxy Settings

Avoid using Google DNS (8.8.8.8) for Zvelo queries, as it can cause "Invalid Authorization" errors. Check your forwarder settings

Run:

For HTTPS sites, Kerio Control must to categorize URLs. Without SSL inspection, only SNI-based partial categorization works. Go to > Advanced Options > Time Server

If incorrect:

The error "Kerio Control Web Filter is reported to be not activated, and categorization is disabled" usually stems from (expired tokens) or DNS reliability issues . Fix 1: Resolve Invalid Authorization (Expired Zvelo Tokens) Without SSL inspection

Perform these quick checks to save time:

If the license is valid but categorization remains disabled, your firewall may be unable to resolve the categorization server hostnames.

If you are seeing the error in your Kerio Control dashboard, your firewall's ability to restrict or monitor internet content based on URL categorization is not working. This is a critical issue for businesses relying on content filtering for security and productivity.