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Jack-4482 asked SadiqhAhmed-MSFT answered

Please help! MARSAgentInstaller fails and exits with error ID: 116

I have been trying to get a system state and files/folders backup of my windows server 2012 R2 but the MARSAgentInstaller.exe fails. My server, agent installer, and vault credentials files are all up to date. I also made a rule in my firewall to allow all connections for the MARSAgentInstaller but that didnt change anything. I cant seem to figure out what's causing the error and I've been trying for 3 days now. In the screenshots you can see the error, then after clicking ok the second windows pops up saying "Error starting the Microsoft Azure Recovery Services Agent Setup Wizard"76822-azure-error.png


76756-azure-error1.png![76831-azure-error.png][3]


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@Jack-4482 Sorry for the painful experience!

Ensure all pre-requisites are met - https://docs.microsoft.com/en-us/azure/backup/backup-support-matrix-mars-agent#support-for-direct-backups
Ensure the MARS agent is up to date. The current version is 2.0.9207.0, you can download it from Azure portal > recovery services vault > Your vault properties > Recovery services agent > Download

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If problem persist post updating the agent, reboot the machine and then try.


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As stated in my original post, my MARS agent is the current version. All other prerequisites are met as well.

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@Jack-4482 Thanks for the reply. In order to troubleshoot this issue, there are number of steps that we need to perform, couple of them we have already tried, (pre-requisite and updating agent) and further logs investigation is required to understand the scenario type to troubleshoot the issue. That being said, you need to contact Azure backup technical support team to assist you in resolve this issue.

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SadiqhAhmed-MSFT answered

@Jack-4482 Was able to resolve this issue by uninstalling the MARS agent and install it again.

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