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E_MBN_INVALID_CACHE
E_MBN_INVALID_CACHE is a Windows Mobile Broadband (MBN) HRESULT. It indicates that the Mobile Broadband visible-provider cache cannot be used for the requested operation.
What to check for E_MBN_INVALID_CACHE
- Refresh provider information from the device instead of selecting a provider from the stale cache.
- Check for changes in radio state, location, SIM, roaming status, or device reset since the cache was built.
- Keep cache invalidation separate from provider-selection logic so a refresh failure is visible in diagnostics.
Diagnostic interpretation of E_MBN_INVALID_CACHE
E_MBN_INVALID_CACHE has the HRESULT value 0x8054820C. AllStat records the condition as “Visible provider cache is invalid.”. For E_MBN_INVALID_CACHE, 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_INVALID_CACHE
- Record the exact COM method or Windows API, its input object, the calling thread, and the full 0x8054820C 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_INVALID_CACHE or the mbn / cache operation.
- Preserve the first failure in the call chain; a later HRESULT can describe cleanup rather than the original mbn / cache condition.
Retry and recovery for E_MBN_INVALID_CACHE
Retry E_MBN_INVALID_CACHE only when the owning API documents a transient state or after the condition described as “Visible provider cache is invalid.” has changed. For E_MBN_INVALID_CACHE, 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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