WUA Networking Error Codes
The Windows Update Agent (WUA) API can return the following error codes when performing network operations such as searching for updates:
| Constant/value | Description |
|---|---|
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The downloaded file has an unexpected content type. |
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Same as HTTP status 400 – The server could not process the request due to invalid syntax. |
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Same as HTTP status 401 – The requested resource requires user authentication. |
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Same as HTTP status 403 – Server understood the request, but declines to fulfill it. |
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Same as HTTP status 404 – The server cannot find the requested URI (Uniform Resource Identifier). |
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Same as HTTP status 405 – The HTTP method is not allowed. |
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Same as HTTP status 407 – Proxy authentication is required. |
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Same as HTTP status 408 – The server timed out waiting for the request. |
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Same as HTTP status 409 – The request was not completed due to a conflict with the current state of the resource. |
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Same as HTTP status 410 – Requested resource is no longer available at the server. |
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Same as HTTP status 500 – An error internal to the server prevented fulfilling the request. |
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Same as HTTP status 501 – Server does not support the functionality required to fulfill the request. |
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Same as HTTP status 502 – The server, while acting as a gateway or proxy, received an invalid response from the upstream server it accessed in attempting to fulfill the request. |
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Same as HTTP status 503 – The service is temporarily overloaded. |
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Same as HTTP status 504 – The request was timed out waiting for a gateway. |
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Same as HTTP status 505 – The server does not support the HTTP protocol version used for the request. |
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The request could not be completed and the reason did not correspond to any of the WU_E_PT_HTTP_* error codes. |
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Same as ERROR_WINHTTP_NAME_NOT_RESOLVED - The proxy server or target server name cannot be resolved. |
Requirements
| Requirement | Value |
|---|---|
| Header |
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