[Bug] Error on conversation request: read ECONNRESET

Environment

• OS: Windows
• Eclipse Version: Eclipse 2026-06 (4.40)
• Plugin Version: Copilot 0.19.0

Describe the bug
While using the GitHub Copilot Eclipse plugin, I saw the following in chat window:
Sorry, an error occurred while generating a response. Details: Error on conversation request: read ECONNRESET

In the Error Log, I saw the following entry:

eclipse.buildId=4.40.0.20260604-0652
java.version=21.0.11
java.vendor=Eclipse Adoptium
BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=hu_HU
Framework arguments:  -product org.eclipse.epp.package.dsl.product -pluginCustomization plugin_customization.ini
Command-line arguments:  -os win32 -ws win32 -arch x86_64 -product org.eclipse.epp.package.dsl.product -pluginCustomization plugin_customization.ini

org.eclipse.lsp4e
Error
Wed Jul 01 07:18:17 CEST 2026
[LS:GitHub Copilot Language Server][Error]	[toolCallingLoop] Fetch failed: {
  type: 'failed',
  reason: 'Error on conversation request: read ECONNRESET',
  requestId: '0493baee-26bc-4e8d-9dcb-21ceea12487d',
  noRetry: undefined
}

Screenshots

Start with the org.eclipse.lsp4e Error Log entry and the GitHub Copilot Language Server's toolCallingLoop failure for conversation requests on the stated Windows environment. Reproduce the ECONNRESET if possible, then identify and address the failure so chat requests complete reliably or the cause and handling are clearly documented.