App Control: Disconnected Agent caused by “Error: Server Communication: WinHTTP communication error: 12019”
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App Control: Disconnected Agent caused by “Error: Server Communication: WinHTTP communication error: 12019”

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Article ID: 288835

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Updated On:

Products

Carbon Black App Control (formerly Cb Protection)

Issue/Introduction

  • Agent disconnected from the console
  • Trace.bt9 file (created in high debugging) shows error: "Server Communication: WinHTTP communication error: 12019”

Environment

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

Cause

Common issue of proxy not allowing the connection

Resolution

Open a CMD executed as administrator and execute the below commands: 
cd "C:\Program Files (x86)\Bit9\Parity Agent"
dascli password <your cli or global password without the quotes>
dascli tamperprotect 0
net stop parity
fltmc unload paritydriver

netsh winhttp reset proxy

fltmc load paritydriver
net start parity
dascli status

Additional Information

In some cases the WinHTTP error 12017 may also be seen