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Solved: Firepower Management Center – Failed Downloading Updates

The following issue was tested and confirmed fixed in my lab environment on an FMC running version 6.2.3.


When trying to download updates on the FMC, the downloads fail. The issue is certificate related and the FMC is more than likely missing some required certificates.


The following solution requires the following file to be uploaded to the FMC. Once uploaded a script needs to be run in order to complete the placement of certificates.

  • Access the FMC using SFTP and place the above file in the ‘tmp’ folder.
  • Elevate your user privileges
sudo su
  • Untar the file
tar -xvf <NAME_OF_FILE.tar>
  • Run the following script

The relevant certificates should now be installed and you should be able to initiate downloads.


Kelvin is a Cyber Security professional with years and experience working with organisations in different verticals, both large and small. He enjoys contributing to the Network Wizkid knowledge base and he also creates technical content. Kelvin enjoys learning new things and often does this by working on achieving new technical certifications. He holds many professional certifications and academically, he has achieved a Bachelors and Master's degree in both Computer Networks and Cyber Security.

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