Порылся в инженерной части... Вы, видимо, получаете "cookie information is corrupt" при включении роутера и падаете в роммон?
Проблема известна на 32xx сериях.
Failure Analysis on RMA units indicated that the cookie has corrupted data in the first 28 bytes with zeros. This seems to be a deliberate write rather than the result of any external conditions, given the fact that these units subsequently passed all tests under margin conditions after the cookie value was restored. ROMMON code review and testing revealed a flaw which allows corrupted RAM data to be saved to flash and would cause data corruption as experienced by customer.Engineering Change Order E095161 will be introduced into manufacturing to install the new ROMMON at a future date to be determined.
All units prior to this are susceptible to this error condition. Upgrading of IOS ROMmon software is recommended to prevent this condition. An IOS software image is available to perform this upgrade.
Настоятельно рекомендуют проапгрейдить ROMmon software. Также указано, что восстановление в "полевых условиях" не производится, только в сервис-центрах. Хотя, в общем-то, поля там расписаны, можно пробовать восстановить самостоятельно при наличии аналогичного роутера.