The Web Filter relies on specific DNS lookups to function. Misconfigured DNS servers are a leading cause of "Invalid Authorization" errors.
I can provide specific terminal commands or log analysis steps based on your setup. Share public link The Web Filter relies on specific DNS lookups to function
If connectivity is stable but the database is corrupted or stuck, forcing a manual update can re-initialize the service. Go to . Select the Kerio Control Web Filter tab. Look for the Database Update section. Click Check for Update or Update Now . Share public link If connectivity is stable but
Reinstall Kerio Control preserving the configuration. Look for the Database Update section
: Temporarily route your WAN DNS forwarders through a secure upstream provider like Cisco Umbrella or CleanBrowsing to filter out bad categories at the DNS level.
Click . If the options are greyed out, your license for this specific module may have expired or is not included in your current subscription. 2. Resolve "Invalid Authorization" (Zvelo Tokens)