Problem/Symptom: The automatic Windows update fails and the Windows update log has the following error:
Handler WARNING: DPX failed with 0x80070570.
Potential Cause: Proxy or firewall settings do not allow range request.
Remedy:
In the proxy server that you use, change the setting to allow a range request and ensure that the range value is wide.
Note
The DPX (Delta Package eXpander) is a Windows setting and is pre-set by default. It is recommended not to change or disable the DPX setting to fix this problem.