The difference between K9 and K9C in the 1800/2800/3800 series

For the 1800/2800/3800 series, there are two models, one is K9 and the other is K9C. C in K9C means Configurabule. Usually, the K9C image at the factory is Mobility Express controller software, and K9 is CAPWAP lightweight AP software. In fact, you can convert between CAPWAP AP and Mobility Express if necessary. If you unpack a 1800/2800/3800 series, you may face the following three situations.

MOBILITY EXPRESS CAPABLE

AIR-AP2802I#show version
AP Image type    : MOBILITY EXPRESS IMAGE
AP Configuration : MOBILITY EXPRESS CAPABLE 

This is the Mobility Express controller software. If you need to convert to CAPWAP, you can use the following command.

AIR-AP2802I#ap-type capwap

NOT MOBILITY EXPRESS CAPABLE

AIR-AP2802I#show version
AP Image type    : MOBILITY EXPRESS IMAGE
AP Configuration : NOT MOBILITY EXPRESS CAPABLE

This is the Mobility Express controller software, but it works in AP mode. If you need to convert to controller, you can use the following command.

AIR-AP2802I#ap-type mobility-express

No AP Configuration field

This is CAPWAP lightweight AP software. If you need to convert to controller, you can use the following command(choose one).

AIR-AP2802I#ap-type mobility-express tftp://tftp_server/file_name 
AIR-AP2802I#archive download-sw /reload tftp://tftp_server/file_name

Other

When performing RMA, the K9 model will be replaced whether the AP is K9 or K9C.

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