您好，AP上灯的颜色含义手册上会有：
蓝色灯一般表示有client端连接到这个AP上使用。
http://www.cisco.com/c/en/us/td/docs/wireless/access_point/1600/quick/guide/ap1600getstart.htmlTable 1 LED Status Indications
Message
Type
Status
LED
Message
Meaning
Boot loader status sequence
Blinking green
DRAM memory test in progress
DRAM memory test OK
Board initialization in progress
Initializing FLASH file system
FLASH memory test OK
Initializing Ethernet
Ethernet OK
Starting Cisco IOS
Initialization successful
Association status
Chirping Green
Normal operating condition, but no wireless client associated
Green
Normal operating condition, at least one wireless client association
Operating status
Blinking amber
Software upgrade in progress
Cycling through green, red, and amber
Discovery/join process in progress
Rapidly cycling through red, green, and amber
Access point location command invoked
Blinking red
Ethernet link not operational
Boot loader warnings
Blinking amber
Configuration recovery in progress (MODE button pushed for 2 to 3 seconds)
Red
Ethernet failure or image recovery (MODE button pushed for 20 to 30 seconds)
Blinking green
Image recovery in progress (MODE button released)
Boot loader errors
Red
DRAM memory test failure
Blinking red and amber
FLASH file system failure
Blinking red and off
Environment variable failure
Bad MAC address
Ethernet failure during image recovery
Boot environment failure
No Cisco image file
Boot failure
Cisco IOS errors
Red
Software failure; try disconnecting and reconnecting unit power
Cycling through red, green, amber, and off
General warning; insufficient inline power
