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E_MBN_INVALID_ACCESS_STRING
E_MBN_INVALID_ACCESS_STRING is a Windows Mobile Broadband (MBN) HRESULT. It indicates that the APN or other access-string value in the connection request is incorrect for the selected cellular service.
What to check
- Compare the APN and credentials with the values supplied by the carrier for the active subscription.
- Check profile XML and configuration deployment for whitespace, stale values, or a profile intended for a different carrier.
- Do not publish a guessed APN as a workaround; obtain the correct carrier configuration or a managed profile.
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