App Control: Download Failures Due To WinHttpQueryHeaders StatusCode[000001F7].
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App Control: Download Failures Due To WinHttpQueryHeaders StatusCode[000001F7].


Article ID: 286804


Updated On:


Carbon Black App Control (formerly Cb Protection)


  • Agent upgrades are failing with:
    WinHttpQueryHeaders StatusCode[000001F7]
  • Agent install failures similar to:
    <Cb CustomAction> [05-09-2019 21:00:20:854] Unable to download config file Error[WinHttpQueryHeaders StatusCode[000001F7]] 
    CustomAction b9CA_A_ConfigRetrieval returned actual error code 1603 (note this may not be 100% accurate if translation happened inside sandbox) 
    Action ended 21:00:20: b9CA_A_ConfigRetrieval. Return value 3. 
    Action ended 21:00:20: INSTALL. Return value 3.


  • App Control Server: All supported versions
  • App Control Agent: All supported versions


Microsoft defines the hex code 000001F7 as:
The service is temporarily overloaded.



This typically means the webserver is unavailable, please follow these troubleshooting steps:
  1. Log in to the application server hosting the Console as the Carbon Black Service Account.
  2. Open IIS Manager > expand the server > click Application Pools.
  3. Verify the Identity and Status for each of the following Application Pools:
    • DefaultAppPool
    • AppCDownloads

Additional Information

  • If the issues persist please contact Support.
  • The Application Pool: AppCDownloads is created on Server version 8.10.2+