Sensors offline with HTTP 400 error code
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Sensors offline with HTTP 400 error code

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Article ID: 419421

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Updated On:

Products

Carbon Black EDR

Issue/Introduction

  • Sensors show offline in console
  • Sensor.log shows HTTP 400 error code for communication
  • Sensorcomms.log shows HTTP 400 error code for registration and eventlog submissions

Environment

  • EDR Server: All Supported Versions
  • EDR Sensor: All Supported Versions
  • Microsoft Windows OS: All Supported Versions
  • Mac OSX OS: All Supported Versions
  • Linux OS: All Supported Versions

Cause

EDR Server host time out of sync due to failed NTP service.

Resolution

Manually set OS time or resolve NTP service issue.

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