What does HRESULT 0x80244028 (WU_E_PT_NO_AUTH_COOKIES_CREATED) mean?

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Windows Update could not create a valid authentication cookie from the service response.

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WU_E_PT_NO_AUTH_PLUGINS_REQUESTED	WU_E_PT_INVALID_CONFIG_PROP

WU_E_PT_NO_AUTH_COOKIES_CREATED

WU_E_PT_NO_AUTH_COOKIES_CREATED means the agent received authentication information but could not turn it into a valid authentication cookie for the protocol session.

What to check

Review the IIS, WSUS, and proxy authentication response for the failing request.
Check whether a proxy or load balancer changes, strips, or blocks session cookies and authentication headers.
Verify that the client is using the intended WinHTTP proxy configuration rather than browser-only proxy settings.

netsh winhttp show proxy

Microsoft: Windows Update proxy selection

Microsoft: WSUS messages and troubleshooting tips

Microsoft: Windows Update error reference

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