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Cisco Bug: CSCtb83840 - phone or cm upgrade upgrade fails with authentication error

Last Modified

Feb 22, 2014

Products (1)

  • Cisco Unified Communications Manager (CallManager)

Known Affected Releases


Description (partial)

      Upgrade to or greater fails with the following error:
      The selected signed file could not be authenticated. The file might have 
     been tampered with or an error might have occurred during download. Please 
     verify the MD5 hash value against the Cisco Systems web site: 
      Current active software version is 5.0.4 or 5.1.1.
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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  • Known Fixed Releases
  • Related Community Discussions
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