Threat Report: Exposing Malware in Linux-Based Multi-Cloud Environments | Download Now

App Control: WinHTTP Proxy Blocking Agent Communications

App Control: WinHTTP Proxy Blocking Agent Communications

Environment

  • App Control Agent: All Supported Versions
  • Microsoft Windows: All Supported Versions

Symptoms

  • Agents are unable to communicate and register with the App Control server
  • Dascli status shows: "Connection: Disconnected (Security Error)"
  • Error messages in the Trace.bt9 log like this: 
    00:00:44 723834337 (17BC) - Server Communication: WinHTTP communication error: 12002
  • Console errors are similar to:
    DownloadError[WinHttpSendRequest Error[12002:]]

Cause

WinHTTP Proxy is not set properly

Resolution

  1. Open a command prompt with administrative rights
  2. Run: 
    netsh winhttp show proxy
  3. If a proxy exists, ensure proxy is set from the command line as:
    netsh winhttp set proxy proxy-server="<proxyservername>" bypass-list=<cbprotectionservername>;<Existing Bypass Lists>
  4. A reboot may be required to restore the connection

Additional Notes

NOTE: Certain proxies may also require the App Control Server ports 41002 + 443 added to the server name > e.g: AppControlServerNameHere.local:41002 AppControlServerNameHere.local:443 (Replace AppControlServerNameHere with the actual name of your App Control Server)

Labels (1)
Was this article helpful? Yes No
0% helpful (0/1)
Article Information
Author:
Creation Date:
‎09-09-2020
Views:
8093
Contributors