Cisco has identified an issue where some Cisco ASA 5505 units fail to power on after a powercycle or during normal operations. When the failure occurs, the units become unresponsive and are unable to recover from the failure. A majority of Cisco ASA 5505 units do not exhibit this problem. The ones that do exhibit this problem have been seen to do so from within the first 30 days of installation.
A higher than normal failure rate was observed on a single component from one supplier. Cisco stopped using the component from this supplier as soon as the problem was identified. This component is sourced from multiple suppliers and therefore majority of Cisco ASA 5505 units are not affected by this problem.
When this problem occurs, there is no console connection, LED or any other electronic activity.
Cisco recommends a fix-on-fail strategy for this problem.
As of approximately June 01, 2007, new products that were manufactured under Engineering Change Order (ECO) E088917 are guaranteed to be free of this problem. Refer to How to Identify Hardware Levels below for instructions on how to view the version of in-service product.
Customers should first verify if their ASA5505(s) are affected by this problem. The Serial Number Validation Tool under the How to Identify the Hardware Levels section of this field notice can be used to verify if your ASA 5505(s) are affected.
If your Cisco ASA5505(s) are affected, Service Logistics has known-good inventory at this time. The standard RMA process and delivery times are in effect.
Use the linked Serial Number Validation Tool to verify if your ASA 5505(s) are affected.
Note: Products that fall outside the affected serial number range are not affected.
The serial number (SN) of the Cisco ASA 5505 can be found on the bottom of the unit or via the
Please use the following tool to validate your serial number(s).
For More Information
If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:
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