Verify that the checkbox for is explicitly checked. Click Apply to push the policy to all active interfaces.
Configure Kerio Control to send email alerts to the administrator when license expiration dates approach or when update failures occur.
: Kerio Control performs automatic reliability checks. If it fails to receive DNS responses 10 times in a row within one minute, it marks the Web Filter as "not reliable" and disables categorization. Verify that the checkbox for is explicitly checked
Navigate to > Licensing and click Activate License to force a synchronization check with GFI's backend registry. Technical Summary of Variables Variable / Parameter Default Setting Recommended Troubleshooting Value DetectReliability 1 (Enabled) 0 (Disabled)
Kerio Control’s web content filtering is failing: the Web Filter service shows “not activated” and URL categorization is disabled, causing unfiltered web access. This is a high-priority (hot) problem because it bypasses policy enforcement and exposes users to inappropriate or malicious content. : Kerio Control performs automatic reliability checks
Kerio Control 依赖 DNS 查询来获取 Zvelo 服务的授权令牌 (token)，此令牌有效期为 21 天。使用某些公共 DNS 服务器（如 Google 的 8.8.8.8）有时会导致这种令牌交换出现问题。
The error indicates that your firewall cannot classify web pages, which often leads to intermittent internet dropouts or unblocked malicious content . This critical issue typically stems from unreliable DNS queries sent to Kerio update servers, expired Zvelo URL database tokens , or subscription synchronization errors. Technical Summary of Variables Variable / Parameter Default
If storage utilization matches or exceeds 95%, clear out bloated database cache files: rm -rf /var/winroute/lib/firebase/* Use code with caution.