User's Manual
C-13
Cisco IOS Software Configuration Guide for Cisco Aironet Access Points
OL-11350-01
Appendix C Error and Event Messages
 802.11 Subsystem Messages
Error Message DOT11-4-FLASHING_RADIO: “Interface %s, flashing radio firmware (%s).”
Explanation
The indicated interface radio has been stopped to load the indicated new firmware.
Recommended Action None.
Error Message DOT11-4-LOADING_RADIO: “Interface %s, loading the radio firmware 
(%s).” 
Explanation
The indicated interface radio has been stopped to load new indicated firmware.
Recommended Action None.
Error Message DOT11-2-NO_FIRMWARE: “Interface %s, no radio firmware file (%s) was 
found.” 
Explanation
When trying to flash new firmware, the file for the radio was not found in the Flash file 
system. Or, the IOS on the access point is corrupt.
Recommended Action The wrong image has been loaded into the unit. Locate the correct image based 
on the type of radio used. To resolve this issue you may have to reload the access point with a new 
Cisco IOS image. Instructions for reloading an image are found in “Working with Software Images” 
section on page 20-18.
If the IOS on the access point is corrupt, reload the access point image using the Mode button 
method.
Error Message DOT11-2-BAD_FIRMWARE: “Interface %s, radio firmware file (%s) is 
invalid.”
Explanation
When trying to Flash new firmware into the indicated interface the indicated radio 
firmware file was found to be invalid.
Recommended Action Make sure the correct firmware image file is located in the place where the unit 
expects to find it.
Error Message DOT11-2-RADIO_FAILED: “Interface %s, failed - %s.”
Explanation
The radio driver on the indicated interface found a severe error and is shutting down for 
the indicated reason.
Recommended Action None.
Error Message DOT11-4-FLASH_RADIO_DONE: “Interface %s, flashing radio firmware 
completed.” 
Explanation
The indicated interface radio firmware flash is complete, and the radio will be restarted 
with the new firmware.
Recommended Action None.










