No model available in Copilot Chat in Eclipse

[kkrein]

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When using Github Copilot in Eclipse, no model can be selected. Only if a sign-out followed by a newly sign-in is made, the models are available, after a restart, the same procedure has to be done.
In the Error-Log only a few info messages are shown, no warning or error

!ENTRY org.eclipse.lsp4e 1 0 2025-11-19 09:47:57.516
!MESSAGE [Info]	[certificates] Removed 33 expired certificates

!ENTRY com.ibm.etools.rdz.client.certificates 1 0 2025-11-19 09:48:01.149
!MESSAGE See if a security provider needs to be loaded: com.ibm.etools.rdz.client.certificates.plugin

!ENTRY com.ibm.etools.rdz.client.certificates 1 0 2025-11-19 09:48:01.149
!MESSAGE cryptoProviderClassName override value is: null in plugin: com.ibm.etools.rdz.client.certificates.plugin

!ENTRY com.ibm.etools.rdz.client.certificates 1 0 2025-11-19 09:48:01.150
!MESSAGE No security provider override has been specified: com.ibm.etools.rdz.client.certificates.plugin

!ENTRY com.ibm.etools.rdz.client.certificates 1 0 2025-11-19 09:48:01.150
!MESSAGE See if a the override rdzTLSVersion parameter has been specified: com.ibm.etools.rdz.client.certificates.plugin

!ENTRY com.ibm.etools.rdz.client.certificates 1 0 2025-11-19 09:48:01.150
!MESSAGE The override rdzTLSVersion parameter was not specified: com.ibm.etools.rdz.client.certificates.plugin

!ENTRY com.ibm.ftt.dbbz.integration 1 0 2025-11-19 09:48:01.172
!MESSAGE DBBzUserBuildUtil.formBuildPath(): Build path returned: /n <>

!ENTRY org.eclipse.lsp4e 1 0 2025-11-19 09:51:32.066
!MESSAGE [Info]	[Semantic Search] Semantic search is disabled { reason: 'watchedFiles capability is not available' }

!ENTRY org.eclipse.lsp4e 1 0 2025-11-19 09:51:32.067
!MESSAGE [Info]	[AutoModelService] Auto model cache cleared due to token update

• Eclipse used 4.31.0.v20240227-1638
• Copilot Version 0.13.1.202511180215

We are using Github in an enterprise setting. Are there any traces which can be enabled or are there any files/logs which can be checked?

[jonattasmoraes]

Hello 👋

This behavior usually happens in Eclipse when Copilot cannot keep a valid authentication session. The fact that the models only appear after signing out and signing back in suggests an issue with how the Enterprise environment handles tokens or proxies.

A few things you can check:

• Confirm that your GitHub Enterprise setup allows access to the Copilot model endpoints. Some companies block them through a proxy or firewall.

• Verify that Eclipse is allowed to make outgoing HTTPS requests without interception. Certificate inspection can cause the Copilot plugin to fail silently.

• Enable Copilot logs in Eclipse. You can do this by opening:
  Help → About Eclipse → Installation Details → Configuration.
  Look for entries related to com.github.copilot and lsp4e.

• You can also check the Eclipse workspace logs at:
  <workspace>/.metadata/.log

If the session resets every restart, this strongly indicates an issue with token storage or network policies in the Enterprise environment. Your GitHub admin may need to verify that Copilot access is enabled for your account and not being blocked by SSO or network restrictions.

[kkrein]

Hi,
thanks for the answers, I will come back with the results :-)