Endpoint Standard: Issues in accessing Microsoft Teams
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Endpoint Standard: Issues in accessing Microsoft Teams

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Article ID: 286106

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Updated On:

Products

Carbon Black Cloud Endpoint Standard (formerly Cb Defense)

Issue/Introduction

  • Team application launches successfully however the application is unable to connect to Microsoft servers .
  • Application works fine when sensor is in bypass mode

Environment

  • Endpoint Standard Sensor: 3.6.0.1791
  • Microsoft Teams: Any supported version

Cause

Carbon Black Cloud File permissions have been modified

Resolution

  1. Navigate to c:\windows\system32
  2. Find files c:\windows\system32\ctiuser.dll and c:\windows\syswow64\ctiuser.dll
  3. Right click > Properties > Security. Confirm that "All Application packages", "All Restricted Application Packages", and "System" are there and has read/read & execute permissions on the two files.