Update the Discovery Agent in Closed Networks
Platform Notice: Cloud and Data Center - This article applies equally to both cloud and data center platforms.
Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.
*Except Fisheye and Crucible
Summary
When updating the Discovery Agent using "discovery_agent.exe -update" on a closed network, an error occurs: "Connection closed." No additional information is provided.
Solution
Through a command prompt, go to the Discovery Agent folder and run "discovery_agent -update". The following will be logged:
5/7/2025 1:45:29 PM: [Normal] The underlying connection was closed: An unexpected error occurred on a send.
at System.Net.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult)
at System.Net.WebClient.GetWebResponse(WebRequest request, IAsyncResult result)
at System.Net.WebClient.DownloadBitsResponseCallback(IAsyncResult result)
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Insight.Discovery.Tools.Networking.DownloadClient.<DownloadFileAsync>d__1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Insight.Discovery.Tools.Update.UpdateService.<DownloadDiscoveryBinaries>d__17.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Insight.Discovery.Tools.Update.UpdateService.<UpdateAsync>d__15.MoveNext()
5/7/2025 1:45:29 PM: [Normal] Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host.
at System.Net.TlsStream.EndWrite(IAsyncResult asyncResult)
at System.Net.ConnectStream.WriteHeadersCallback(IAsyncResult ar)
5/7/2025 1:45:29 PM: [Normal] An existing connection was forcibly closed by the remote hostWorkaround - Option 1:
Download the Discovery Tools on a machine that has access to the internet, and then copy the zip to the remote host.
Workaround - Option 2:
Add the following URLs to the firewall allowlist:
https://marketplace.atlassian.com
https://packages.atlassian.comThen run the "discovery_agent -update". Alternatively, the following PowerShell script can be used as well, as long as the host can reach out to those same URLs:
$uri = "https://marketplace.atlassian.com/rest/2/addons/com.riadalabs.jira.plugins.insight-discovery/versions/latest?hosting=cloud"
$response = Invoke-RestMethod -Uri $uri -Method Get
$discoveryVersion = $response.name
$downloadPath = Join-Path -Path "$([System.Environment]::GetFolderPath(40))" -ChildPath "Downloads"
$packageSaveName = "assets-discovery-${discoveryVersion}.zip"
$outFilePath = Join-Path $downloadPath $packageSaveName
$extractFolder = Join-Path $downloadPath "ad-install"
$agentMsiPath = Join-Path $extractFolder "Discovery_Agent_Setup.msi"
Write-Host "Downloading ${discoveryVersion} to ${downloadPath}"
Invoke-WebRequest $response.vendorLinks.binary -OutFile $outFilePath
Expand-Archive $outFilePath -DestinationPath $extractFolder -Force
$params = '/i', $agentMsiPath, 'TARGETDIR="C:\Program Files\Atlassian\Discovery Agent"', '/qn'
msiexec $params
Wait-Event -Timeout 20
msiexec $paramsWas this helpful?