TP-Link CR1900 User Manual page 7

Chapter 1
LED
Downstream
Upstream
Internet
LAN
USB
Wireless
WPS
Note:
1. If the Downstream LED or Upstream LED is off, check your internet connection first. Refer to
Router for more information about how to make internet connection correctly. If you have already made a right
connection, contact your ISP to make sure your internet service is available now.
Status
The modem router has synchronized more than one
Green
channel.
White The modem router has synchronized one channel.
Flashing The modem router is scanning for downstream channels.
The synchronization has not started or has failed. Please
Off
refer to
Note 1
The modem router has synchronized more than one
Green
channel.
White The modem router has synchronized one channel.
Flashing The modem router is synchronizing upstream channels.
The initialization has not started or has failed. Please
Off
refer to
Note 1
On The modem router is connected to the internet.
There is no internet connection. Please refer to
Off
troubleshooting.
Flashing The modem router is starting up.
At least one LAN port is connected to a powered-on
On
device.
Off No LAN port is connected to a powered-on device.
On The inserted USB device is ready to use.
Off No USB device is plugged into the USB port.
Flashing A USB device is being identified.
On The Wireless function is enabled.
Off The Wireless function is disabled.
A wireless device has been successfully added to the
On
network by WPS.
A wireless device is trying to connect to the network
by WPS. This process may take up to 2 minutes. Please
Flashing
press the WPS button on the wireless devices that you
want to add to the network while the LED is flashing.
A WPS connection has been established for more than
Off 5 minutes or a wireless device has failed to be added to
the network by WPS.
Get to Know Your Modem Router
Indication
for troubleshooting.
for troubleshooting.
for
Note 2
Connect Your Modem
4