Kerio Control Web Filter Is Not Activated Categorization Is Disabled Fixed Upd Page

Ensure is checked and the time zone is correct. Even a five-minute discrepancy can cause the Web Filter to show as "not activated." 6. Update to the Latest Version

The Kerio Control Web Filter is a premium add-on service powered by Cyren (or GFI, depending on your version). It requires a valid, active subscription. Go to Status > License Details .

Click Update License Info to force the appliance to check in with the GFI servers. 2. Check DNS Resolution on the Firewall Ensure is checked and the time zone is correct

The Web Filter uses SSL/TLS certificates to communicate with categorization servers. If your Kerio Control system time is incorrect, the certificate validation will fail. Go to .

Ensure that SSL inspection on a parent device isn't interfering with the Kerio appliance's encrypted handshake with GFI/Kerio servers. 5. Correct System Time and Date It requires a valid, active subscription

The Kerio Control appliance must be able to resolve the addresses of the backend categorization servers. If the firewall itself cannot resolve DNS, the Web Filter will fail to activate.

Go to Status > System Health and use the Debug or Ping tool (or SSH into the box). Try to ping google.com or ://kerio.com . or malware sites)

If you are seeing the error in your Kerio Control administration interface, your network's content filtering has essentially been paralyzed. This error prevents the firewall from identifying website categories (like social media, gambling, or malware sites), meaning your custom URL rules won’t work.

Here is a comprehensive guide to troubleshooting and fixing this issue. 1. Verify License Status and Maintenance

GFI/Kerio frequently updates the URLs used for categorization and licensing. If you are running a very old version of Kerio Control, it may be trying to contact a retired server. Go to .