Closed Network Patch DB Failure

Last Updated On: 18 May 2026|

8 minutes read |

Causes

Patch DB Sync happens failure when:

The old download tool is being used.
Sync data files transferred to the server are incomplete or corrupted. It might be due to proxy or unstable internet connection.
The Scheduled DB is Disabled.
The updatedb folder moved to the CRS folder is incomplete.

1. Verify Download Tool Version

2. Check Download Status and Errors

3. Check Exception Traces

Open download_tool_log.log (found in the same directory).
Search for below-mentioned exceptions. These indicate what went wrong during the sync process.

4. Check HTTP Status Codes

These are also found in download_tool_log.log.
Search for below mentioned HTTP Status codes. These reflect whether the file was fetched or denied.

5. Verify the updatedb Folder

Ensure the downloaded updatedb folder includes all required .xml and .sql files.
If incomplete or corrupt, rerun the external download tool and retransfer the folder.

6. Validate Scheduled Sync

In the Patch Manager Plus server console: Navigate to Threats & Patches ---> Update Now; where you can see and validate the Vulnerability DB Sync settings.
You can also trigger a manual sync by clicking on Update Now to test if the transfer was successful.

Cause: Timeout during sync due to slow file transfer

Resolution: Ensure the tool runs on a stable LAN. Retry the sync process and check for packet loss.

Cause: Incomplete file download or early disconnect

Resolution: Stabilize the network connection. Increase timeout duration if required.

Cause: Unable to connect to internal sync endpoint

Resolution: Check the local network route and firewall rules. Ensure the staging server is reachable.

Cause: Internal service/port blocked

Resolution: Allow the required port in the firewall. Verify proxy rules if configured.

Cause: DNS resolution failure

Resolution: Use the IP address directly or fix internal DNS/host mapping issues.

Cause: Proxy authentication failure or misconfiguration

Resolution: Recheck proxy authentication credentials and verify proxy configuration.

Error Code	Name	Cause	Resolution
10008	Download Failure	The download process failed due to a network issue or an internal error.	Review the `download_tool_log.log` file for exception traces to identify the root cause. Once reviewed, retry the download after verifying network connectivity and access to the repository path.
10009	Checksum Mismatch	The downloaded file was corrupted or modified during transfer, causing integrity check failure.	Use the external download tool to re-download the necessary files. After download, replace the existing folder contents to ensure data consistency.
10010	No Change in File	The file on the server is identical to the local copy; no updates were made.	No action is needed as the file is already up to date. However, if the sync process still fails, check the completeness of the `updatedb` folder to rule out partial updates.
0	Latest File Downloaded	The latest version of the file was successfully downloaded.	This indicates a successful operation and no further action is required. Ensure that the downloaded files are correctly placed inside the `updatedb` folder for sync to proceed as expected.

HTTP Status	Meaning	Cause	Resolution
200 / 206	Download Successful	The file was retrieved successfully from the server.	No further action is needed. The file was downloaded completely without any interruption or error.
404	File Not Found or Link Expired	The requested file does not exist on the server or the download link has expired.	Re-run the external download tool to generate fresh links and retry the operation. Make sure the sync is targeting the correct database version.
304	Not Modified	The file has not changed since the last request, so the server didn’t resend it.	No action is required if the file already exists locally. However, if sync issues persist, verify that the file is present and complete in the local folder.
403	Access Denied or Proxy Block	The server denied access due to lack of permissions or a proxy-related restriction.	Ensure the proxy server isn't blocking access and verify authentication credentials. Update proxy configurations or include valid headers to allow communication.