Kerio Control Web Filter Is Not Activated Categorization Is Disabled Fixed ((full)) May 2026

Here’s a useful, concise fix for the issue: Kerio Control web filter not activating with “categorization is disabled.”

Check License

Summary

The “Web filter not activated, categorization disabled” error in Kerio Control is almost always fixable. Most users resolve it by renewing their license or restarting the categorization service. For persistent cases, clearing the local database or re-synchronizing the system time works wonders. By following this guide, you’ll restore full URL filtering capabilities and keep your network safe from undesirable content. Here’s a useful, concise fix for the issue:

Prevention Checklist

• ✅ Keep Security Pack license active
• ✅ Schedule automatic category updates (daily)
• ✅ Monitor license expiry in dashboard
• ✅ Test web filter periodically with a test user/group
• ✅ Keep Kerio Control updated to latest version (old versions have known categorization bugs)

The "not activated" status is usually a protective state triggered by one of the following: ✅ Keep Security Pack license active ✅ Schedule

Fix #4: Verify DNS and Licensing Server Reachability

Kerio Control must resolve and reach:

Step 4 – Firewall Rules & Web Filter Policy

Misconfiguration can make it seem like web filter is inactive. The "not activated" status is usually a protective