comments: '[Cisco Aironet 2800 Series Access Points Data Sheet](https://www.cisco.com/c/en/us/products/collateral/wireless/aironet-2800-series-access-points/datasheet ...
There are two possible reasons: Special feature for broadcasting AP names in 802.11 beacon frames should be enabled (Cisco Aironet IE) Even when this feature is enabled, it broadcasts only 15 symbols.