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Troubleshooting Windows Agent Installation Error 500
Troubleshooting Windows Agent Installation Error 500

Agent install error 500, Internal Server Error, Agent Error 500

Updated over 3 months ago

Issue Summary:

On rare occasions, attempts to install the Windows Agent may fail, resulting in an Error 500, which indicates an "Internal Server Error." The error message might appear as follows:

System.Net.WebException: The remote server returned an error: (500) Internal Server Error. 
at System.Net.HttpWebRequest.GetResponse()
at LiongardAgentShared.Services.API.ApiClient.GetResponse(HttpWebRequest request)
at LiongardAgentShared.Services.API.ApiClient.RegisterNewAgent(AgentRegistrationRequest agentRegistrationRequest)
CustomAction RegisterAgent returned actual error code 1603 (note this may not be 100% accurate if translation happened inside sandbox)

Possible Causes:

The specific cause of the error is not clear, but it may be related to issues on the host device that prevent the Agent from communicating effectively with Liongard servers.

Workaround Steps:

To resolve this issue, please follow the steps below to manually install and update the Agent:

  1. Connect to the Host Device:
    Ensure that you are connected to the device where you intend to install the Agent.

  2. Download the Specific Version:
    Download Agent version 4.2.4 from: Liongard Agent v4.2.4.

  3. Install the Agent:
    Proceed with the standard installation process for the downloaded Agent file.

  4. Verify Installation:
    After installation, check your installed applications to confirm that the Liongard Agent appears in the list.

  5. Update the Agent:
    Open the Task Scheduler, navigate to the Liongard folder, and run the update task manually.

  6. Confirm Agent Version:
    After running the update, check your installed applications to verify that the Liongard Agent has updated to version 4.2.8.

Further Assistance:

If the issue persists after following these steps, please do not hesitate to open a support ticket with our team for further assistance.

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