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E_MBN_RADIO_POWER_OFF
E_MBN_RADIO_POWER_OFF is a Windows Mobile Broadband (MBN) HRESULT. It indicates that the cellular radio is disabled and cannot perform the requested Mobile Broadband operation.
What to check for E_MBN_RADIO_POWER_OFF
- Check the Windows radio state, physical airplane-mode switch, device-management policy, and modem power state.
- Enable the radio through the approved user or management workflow before starting a connection operation.
- Distinguish a powered-off radio from lack of coverage or a carrier registration failure.
Diagnostic interpretation of E_MBN_RADIO_POWER_OFF
E_MBN_RADIO_POWER_OFF has the HRESULT value 0x80548208. AllStat records the condition as “Radio is powered off.”. For E_MBN_RADIO_POWER_OFF, in practice, interpret that wording at the boundary owned by the Windows component or COM interface that returned the HRESULT, rather than treating the value as a generic Windows message.
Evidence to capture for E_MBN_RADIO_POWER_OFF
- Record the exact COM method or Windows API, its input object, the calling thread, and the full 0x80548208 value before a wrapper converts it to an exception or Boolean result.
- Capture any IErrorInfo text, activity identifier, event-log entry, and subsystem trace that mentions E_MBN_RADIO_POWER_OFF or the mbn / radio / power / off operation.
- Reproduce E_MBN_RADIO_POWER_OFF with the smallest valid input and note whether the result changes with identity, architecture, service state, or target object.
Retry and recovery for E_MBN_RADIO_POWER_OFF
Retry E_MBN_RADIO_POWER_OFF only when the owning API documents a transient state or after the condition described as “Radio is powered off.” has changed. For E_MBN_RADIO_POWER_OFF, configuration, policy, format, and authorization failures normally require correction first; an immediate loop can hide the original call site and add secondary errors.
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