Proxy issue during startup

[ibcht]

Issue :

When starting Eclipse IDE with Copilot plugin, the plugin does not initialize propertly. The bottom-right icon displays an error status.

Workaround :

I need to re-authenticate to Github for the plugin to work.

Context :

• Running behind corporate proxy, set in Eclipse settings as Native to use the system proxy settings. This is authenticated NTLM proxy.
• Alternatively, I tried with px with Direct proxy in Eclipse proxy settings (http://127.0.0.1:3128)
• Both configuration leads to the same issue

Logs :

!ENTRY org.eclipse.lsp4e 1 0 2025-12-09 16:54:16.425
!MESSAGE [Info]	[lsp] GitHub Copilot Language Server 1.395.0 initialized

!ENTRY org.eclipse.lsp4e 1 0 2025-12-09 16:54:16.472
!MESSAGE [Info]	[default] Policy watcher started for GitHub Copilot Plugin

!ENTRY org.eclipse.lsp4e 1 0 2025-12-09 16:54:16.579
!MESSAGE [Info]	[certificates] Removed 12 expired certificates

!ENTRY org.eclipse.lsp4e 4 0 2025-12-09 16:54:37.667
!MESSAGE [Error]	[GithubAvailableEmbeddingTypes] Error fetching available embedding types FetchError: connect ETIMEDOUT 140.82.121.5:443
    at fetch (C:\snapshot\copilot-client\node_modules\@adobe\helix-fetch\src\fetch\index.js:99:11)
    at processTicksAndRejections (node:internal/process/task_queues:105:5)
    at cachingFetch (C:\snapshot\copilot-client\node_modules\@adobe\helix-fetch\src\fetch\index.js:288:16)
    at vQ.fetch (C:\snapshot\copilot-client\lib\src\network\helix.ts:160:22)
    at apiFetch (C:\snapshot\copilot-client\lib\src\network\github.ts:32:22)
    at Ave.doGetAvailableTypes (C:\snapshot\copilot-client\lib\src\workspaceChunkSearch\embeddings\githubAvailableEmbeddingTypes.ts:79:24)
    at Ave.getAllAvailableTypes (C:\snapshot\copilot-client\lib\src\workspaceChunkSearch\embeddings\githubAvailableEmbeddingTypes.ts:50:38)
    at Ave.getPreferredType (C:\snapshot\copilot-client\lib\src\workspaceChunkSearch\embeddings\githubAvailableEmbeddingTypes.ts:129:24)
    at oT.tryInit (C:\snapshot\copilot-client\lib\src\workspaceChunkSearch\workspaceChunkSearchService.ts:128:22) {
  type: 'system',
  _name: 'FetchError',
  code: 'ETIMEDOUT',
  errno: -4039,
  erroredSysCall: 'connect'
}

[dasintw]

I encountered the same issue at my company, and it started occurring after version 0.10.0.

[jdneo]

@ibcht Are there any other logs contains error? I assume the error Error fetching available embedding types FetchError is not the root cause.

[vgoehrke-materna]

@jdneo We have a very similar issue.

When starting Eclipse, the plugin indicates that I am not signed in. After attempting to sign in, a dialog immediately appears stating that I am already signed in. However, in the Copilot menu, the username is empty, and in the Chat, the model selection field is empty.

To resolve this, I must first sign out and then sign in again. Only after this second sign in attempt does the authorization process appear. Once completed, I am successfully signed in and able to use Copilot.

The behavior is the same in versions 0.13.0 and 0.14.0. We are using GitHub Enterprise with the domain ghe.com and Eclipse version 2025‑09 (4.37.0). I have not configured a proxy, and the .log file contains only the following lines:

!ENTRY org.eclipse.lsp4e 1 0 2025-12-31 09:41:35.814
!MESSAGE [Info]	[AutoModelService] Auto model cache cleared due to token update

!ENTRY org.eclipse.lsp4e 1 0 2025-12-31 09:41:35.815
!MESSAGE [Info]	[Semantic Search] Semantic search is disabled { reason: 'watchedFiles capability is not available' }

!ENTRY org.eclipse.lsp4e 1 0 2025-12-31 09:43:44.068
!MESSAGE [Info]	[AutoModelService] Auto model cache cleared due to token update