Event ID - 202

Event Id202
SourceMicrosoft-Windows-Bits-Client
DescriptionWhile transferring %1, BITS encountered error %7 using %6 as the HTTP proxy server. The Web server or proxy server does not support an HTTP feature required by BITS. This problem can be corrected only by the administrator of the Web server or proxy server. Details: {job: %1}, {owner: %2}, {jobId: %3}, {url: %4}, {xferId: %5}, {proxyServer: %6}, {hr: %7}, {urlContentLength: %8}, {urlHttpVersion: %9}, {urlRange: %10}.
Event Information According to Microsoft :

Cause :

This event is logged when BITS encountered error using as the HTTP proxy server.

Resolution :

Ensure that the HTTP server meets BITS requirements

To resolve this issue, ensure that the HTTP server meets BITS requirements.

BITS supports HTTP and HTTPS downloads and uploads and requires that the server supports the HTTP/1.1 protocol. For downloads, the HTTP server's Head method must return the file size and its Get method must support the Content-Range and Content-Length headers. As a result, BITS transfers only static file content and generates an error if you try to transfer dynamic content, unless the ASP, ISAPI, or CGI script supports the Content-Range and Content-Length headers.

BITS can use an HTTP/1.0 server as long as it meets the Head and Get method requirements.

To support downloading ranges of a file, the server must support the following requirements:
  • Allow MIME headers to include the standard Content-Range and Content-Type headers, plus a maximum of 180 bytes of other headers.
  • Allow a maximum of two CR/LFs between the HTTP headers and the first boundary string.
Verify :

Confirm that the proxy servers support HTTP 1.1 RANGE requests. If RANGE requests are enabled, BITS will automatically retry the job.
Reference LinksEvent ID 202 from Source Microsoft-Windows-Bits-Client

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