TP-LINK TD-8816 User Manual

 

4 

 

Figure 2-1 

The LEDs locate on the front panel, which indicate the device’s working status. For details, please 

refer to LED Explanation. 

On 

The modem router is powered on. 

Power 

Off 

The modem router is off. Please ensure that the power 
adapter is connected correctly. 

On 

There is a device connected to this LAN port. 

Flash 

The modem router is sending or receiving data over this 
LAN port. 

LAN 

Off 

There is no device connected to this LAN port. 

On 

ADSL line is synchronized and ready to use. 

Flash 

The ADSL negotiation is in progress. 

ADSL 

Off 

ADSL synchronization fails. Please refer to 

Note 1

 for 

troubleshooting. 

On 

The network is available with a successful Internet 
connection. 

Flash 

There is data being transmitted or received via the 
Internet. 

Internet 

Off 

There is no successful Internet connection or the modem 
router is operating in Bridge mode. Please refer to 

Note 2

 

for troubleshooting. 

) 

1.  If the ADSL LED is off, please check your Internet connection first. Refer to 

 for more information about how to make Internet connection correctly. If you have 

already made a right connection, please contact your ISP to make sure if your Internet service 
is available now. 

2.  If the Internet LED is off, please check your ADSL LED first. If your ADSL LED is also off, 

please refer to 

. If your ADSL LED is GREEN ON, please check your Internet 

configuration. You may need to check this part of information with your ISP and make sure 
everything have been input correctly. Refer to 

 and 

 for more 

information.