If you just renewed, click to refresh the license key. Verify Connection to Kerio Servers
: Set to standard high-speed networks like Cloudflare ( 1.1.1.1 ) or OpenDNS ( 208.67.222.222 ). Avoid defaulting entirely to Google DNS on this rule if authorization errors persist.
cd /opt/kerio/winroute ./tinydbclient "update SiteFilter set DetectReliability=0" /etc/boxinit.d/60winroute restart Use code with caution. Copied to clipboard
Follow these steps in order to isolate and fix the root cause of the breakdown. 1. Fix DNS Forwarding for Zvelo (The Token Refresh Fix) If you just renewed, click to refresh the license key
I can provide specific SSH commands or diagnostic log paths based on your setup. Share public link
The categorization engine requires a specific, active subscription. If your core firewall license expires, or if the standalone Web Filter add-on subscription is allowed to lapse, the software reverts to evaluation mode and deactivates the web filtering module automatically after . Complete Step-by-Step Fix Guide
: Sometimes, specific settings or rules might override the general configuration. Review all rules and settings to ensure there are no conflicting directives. cd /opt/kerio/winroute
./tinydbclient "update SiteFilter set DetectReliability=0" /etc/boxinit Use code with caution.
Security certificates require accurate system time to validate the connection between your firewall and the Kerio servers.
The message indicates Kerio Control’s web filtering isn’t functioning because URL categorization is disabled or unreachable, which disables policy-based filtering and reporting. Investigate licensing, connectivity to categorization services, configuration, system time/certificates, software version, and resource usage; then re-enable the feature, restore connectivity, renew licenses, rebuild caches, update software, and verify operation. If unresolved, collect logs and contact vendor support. Fix DNS Forwarding for Zvelo (The Token Refresh
Occasionally, the local updates directory becomes corrupted, preventing the Web Filter from initializing. Step-by-Step Troubleshooting Guide
: After updating DNS settings, a reboot is often necessary to refresh the token transfer from Kerio internal servers. 4. Verify License Status