Note: If your internet connection is slow, the status will stay “disabled” until the download completes.
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If the above steps do not work, try the following advanced solutions:
Look at the or Primary DNS Server configured for the firewall firewall engine. Note: If your internet connection is slow, the
Kerio Control must resolve and reach:
If nothing works, the configuration database itself may have inconsistent flags. This is a nuclear option.
If Kerio Control detects multiple DNS timeouts (10 failures within 1 minute), it may automatically disable the Web Filter as "unreliable". You can manually disable this safety check via SSH: Log in to the console. Navigate to /opt/kerio/winroute ./tinydbclient "update SiteFilter set DetectReliability=0" Restart the service using /etc/boxinit.d/60winroute restart 3. Verify License and Module Activation If you share with third parties, their policies apply
Enable SSH access in Kerio Control via .
As a result, your custom content filtering rules fail, applications lose their category context, and users might browse completely unrestricted or encounter complete network access timeouts.
instead of Google's DNS to ensure correct token transfer from internal servers. Renew/Update License: If the above steps do not work, try
Even if your license appears active, re-entering it can re-trigger the activation of the web filter module.
Kerio uses a third-party engine (zvelo) for web categorization. If the authorization token (which expires every 21 days) fails to refresh, categorization is disabled. Connect via to your Kerio Control appliance. Check the configuration file: /opt/kerio/winroute/winroute.cfg DiaServerUrl v4.url.zvelo.com Change your DNS forwarders to Cloudflare