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Cb Response: Sensors checking in intermittently

Cb Response: Sensors checking in intermittently

Environment

  • Cb Response Server: All Versions
  • Cb Response Sensor: All Versions
  • Microsoft Windows: All Supported Versions

Symptoms

  • sensorcomms.log shows failed connections with the hresult 0x8007274c
    • 0x8007274C: Facility[WIN32] Code[274C] Severity[1] A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond. 
  • Some or most sensors are still checking in
     

Cause

Something is preventing proper communication from the sensor to server, possibly a misconfigured load balancer

Resolution

  • The following troubleshooting steps can help determine the problem
    • nslookup <ServerURL_in_sensorcomms.log>
    • ping -n 1 <ServerURL_in_sensorcomms.log>
    • tracert <ServerURL_in_sensorcomms.log>:443

Additional Notes


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Creation Date:
‎01-10-2019
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