https://www.cisco.com/c/en/us/support/docs/field-notices/637/fn63761.html
Field Notice: FN - 63761 - CISCO8XX, IAD8XX, and CISCO1941W-XXX Might Fail to Boot Up After a Power...
CISCO8XX, IAD8XX, and CISCO1941W-XXX might fail to boot up after user actions where the board requires a power cycle operation.