Why Is Core Receiving HTTP 403 or Timeout Errors when downloading engine updates from OCM?
Issue
You may see log messages similar to the following in your Core system:
3
[WARNING] 2025.04.10 18:23:40.925: (common.communication) Error while downloading file, url='QUrl("http://XXXXX:9000/console/core/metadescriptor?version=5.13.3&deployment=XXXXX&serial=0")', http_status='0', error='UnknownNetworkError', errorDetails='Connection timed out' [msgid: 485][ERROR ] 2025.04.10 18:23:40.925: (common.update) Error parsing metadescriptor, message='Could not download metadescriptor' [msgid: 282][WARNING] 2025.04.10 18:23:51.796: (common.communication) Error while downloading file, url='QUrl("http://XXXXX:9000/console/core/metadescriptor?version=5.13.3&deployment=XXXXX&serial=0")', http_status='403', error='ContentAccessDenied', errorDetails='Error transferring http://XXXXX:9000/console/core/metadescriptor?... - server replied: Forbidden' [msgid: 485]Cause
These messages usually mean that Core is having trouble connecting to OCM (OPSWAT Central Management). It may be caused by:
- Network timeout or proxy issues
- Port 9000/tcp being blocked
- Restrictions in your firewall or proxy
Solution
Please check the following:
- Proxy or Network Settings Make sure your network allows Core to connect to the OCM server. If you're using a proxy, verify that it allows traffic to the OCM address on port 9000/tcp.
- Firewall Rules Ensure port 9000/tcp is open between Core and OCM. This is required for downloading updates and descriptors.
- More Info on Ports For a full list of ports used by OCM, see the documentation here: Recommended System Requirements - OPSWAT Central Management v7 - Legacy.
If Further Assistance is required, please proceed to log a support case or chatting with our support engineer.
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