What does HRESULT 0x80246008 (WU_E_DM_FAILTOCONNECTTOBITS) mean?

Status / error code:

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Constant name:

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Description:

Windows Update could not connect to the Background Intelligent Transfer Service (BITS).

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WU_E_DM_NOTDOWNLOADED	WU_E_DM_BITSTRANSFERERROR

WU_E_DM_FAILTOCONNECTTOBITS

WU_E_DM_FAILTOCONNECTTOBITS indicates that the download manager could not establish its required connection to BITS. This is a local service-path failure before the update content transfer can proceed.

What to check

Verify the BITS service state and inspect System and Windows Update logs from the same timestamp.
Check for a service-start, dependency, permission, or component-registration failure that predates the Windows Update error.
After fixing the BITS issue, run a new scan or download; do not assume the original job can resume intact.

Get-Service bits, wuauserv

Microsoft: Windows Update error reference

Microsoft: Background Intelligent Transfer Service (BITS)

Microsoft: Windows Update log files

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