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About DSL modem lights - TP-Link modems

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The operational status of your TP-Link DSL modem is indicated by lights (LEDs). TP-Link modems have lights to indicate power, the status and activity of the DSL line, and the status and activity of connections to your computer, whether by ethernet or by wireless.
The operational status of your TP-Link DSL modem is indicated by lights (LEDs). TP-Link modems have lights to indicate power, the status and activity of the DSL line, and the status and activity of connections to your computer, whether by ethernet or by wireless.
-
TP-Link modems have lights on the front (8901G) or the top (8816).
+
TP-Link modems have lights on the front (8901G and 8950) or the top (8816, 8951, 8961 and 9970).
Information is communicated by whether the lights are on, off or flashing. Activity on a line is often indicated by flickering lights, when the line is active.
Information is communicated by whether the lights are on, off or flashing. Activity on a line is often indicated by flickering lights, when the line is active.
-
Here's a summary of how to read the lights on TP-Link modems:
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This article includes a summary of how to read the lights on TP-Link modems.
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==8816 Single Ethernet Port Modem==
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==8816 Single Ethernet Port ADSL Modem==
[[File:8816Lights.jpg|600px]]
[[File:8816Lights.jpg|600px]]
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;Power light
+
;Power
:Should be solid green. If it is unlit, there is a power problem or the unit is broken. Check that the modem is plugged in and switched on.
:Should be solid green. If it is unlit, there is a power problem or the unit is broken. Check that the modem is plugged in and switched on.
-
;LAN light (Local Area Network)
+
 
-
:Should be solid green if computer connected to the ethernet port.
+
;LAN (Local Area Network)
 +
:Should be solid green if a computer is connected to the ethernet port.
 +
 
;ADSL (Asymmetric Digital Subscriber Line)
;ADSL (Asymmetric Digital Subscriber Line)
:Flashes green when the modem is synchronizing, will be solid green once synchronization has occurred.
:Flashes green when the modem is synchronizing, will be solid green once synchronization has occurred.
 +
;Internet
;Internet
: Will illuminate green when authentication has been successful, and will flash to show data traffic.
: Will illuminate green when authentication has been successful, and will flash to show data traffic.
-
==8901G Four Ethernet Ports, Plus Wireless Modem==
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==8901G 4-Ports + "G" Wireless ADSL Modem & 8950ND 4-Ports + "N" Wireless ADSL Modem==
[[File:8901GLights.jpg|600px]]
[[File:8901GLights.jpg|600px]]
-
;Power light
+
;Power
:Should be solid green. If it is unlit, there is a power problem or the unit is broken. Check that the modem is plugged in and switched on.
:Should be solid green. If it is unlit, there is a power problem or the unit is broken. Check that the modem is plugged in and switched on.
;ADSL (Asymmetric Digital Subscriber Line)
;ADSL (Asymmetric Digital Subscriber Line)
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:Will illuminate green when authentication has been successful, and will flash to show data traffic.
:Will illuminate green when authentication has been successful, and will flash to show data traffic.
;WLAN light (Wireless Local Area Network)
;WLAN light (Wireless Local Area Network)
-
:Will be solid green or flashing green if computer connected to the wireless.
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:Will be solid green or flashing green if a computer is connected to the wireless.
-
;Numbered lights
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;Numbers
-
:These lights correspond to ethernet ports connected. These will show a solid green light when a computer is connected to the corresponding port by ethernet cable.
+
:These lights correspond to Ethernet ports connected. These will show a solid green light when a computer is connected to the corresponding port by Ethernet cable and will flash to show data traffic.
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== Internet light ==
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==8951ND 4-Ports + "N" Wireless ADSL Modem==
-
The internet light is '''steady green''' when the Central Office has accepted your modem's login and password and is ready to provide internet service via DSL to your modem. If the light remains '''unlit''', there is a problem.
+
[[File:8951Lights.jpg|600px]]
 +
;Power
 +
:Should be solid green. If it is unlit, there is a power problem or the unit is broken. Check that the modem is plugged in and switched on.
 +
;ADSL (Asymmetric Digital Subscriber Line)
 +
:Flashes green when the modem is synchronizing, will be solid green once synchronization has occurred.
 +
;Internet
 +
:Will illuminate green when authentication has been successful, and will flash to show data traffic.
 +
;WLAN (Wireless Local Area Network)
 +
:Will be solid green or flashing green if a computer is connected to the wireless.
 +
;WPS light (lock symbol)
 +
:Disregard
 +
;Ethernet
 +
:These lights correspond to ethernet ports connected. These will show a solid green light when a computer is connected to the corresponding port by Ethernet cable and will flash to show data traffic.
 +
 
 +
==9970 4-Ports + "N" Wireless ADSL/VDSL Modem==
 +
[[File:TP-Link 9970 LEDs.png|600px]]
 +
 
 +
# If the DSL LED is off, check your internet connection first.
 +
# If the internet LED is off, check your DSL LED first. If your DSL LED is also off, please refer to Note 1. If your DSL LED is GREEN ON, check your internet configuration.
 +
 
 +
== Internet ==
 +
The internet light is '''steady green''' when the NCF authentication server has accepted your modem's login and password and is ready to provide internet service via DSL to your modem. If the light remains '''unlit''', there is a problem.
If your unit was able to log in earlier and you have not made any changes, an unlit light likely means that there is a temporary network problem (at the Central Office or NCF) making it temporarily impossible to check your login and password. In this case it is best to just wait for the problem to be fixed. You may need to power-cycle or restart your modem for it to notice that service has been restored. If you can get online elsewhere (by dial-up, at a friend's home or at an office or library), you can check the NCF web site to see if others are experiencing problems. If not, report the problem, although network-wide problems are almost always noticed quickly.
If your unit was able to log in earlier and you have not made any changes, an unlit light likely means that there is a temporary network problem (at the Central Office or NCF) making it temporarily impossible to check your login and password. In this case it is best to just wait for the problem to be fixed. You may need to power-cycle or restart your modem for it to notice that service has been restored. If you can get online elsewhere (by dial-up, at a friend's home or at an office or library), you can check the NCF web site to see if others are experiencing problems. If not, report the problem, although network-wide problems are almost always noticed quickly.
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*[[Modem Configuration (DSL) TP-Link 8816]]
*[[Modem Configuration (DSL) TP-Link 8816]]
*[[Modem Configuration (DSL) TP-Link 8901G]]
*[[Modem Configuration (DSL) TP-Link 8901G]]
 +
*[[Modem Configuration (DSL) TP-Link 8950ND]]
 +
*[[Modem Configuration (DSL) TP-Link 8951ND]]
 +
*[[Modem Configuration (DSL) TP-Link 8961ND]]
 +
*[[Modem Configuration (DSL) TP-Link 9970]]
== Beyond the lights ==
== Beyond the lights ==
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Lights can indicate only a small amount of information about your modem. To learn more about what your modem is doing, you can [http://www.ncf.ca/ncf/home/modems/dslUsage.jsp view your DSL usage log] (this link is also available from the NCF StartPage, under 'Internet Access').  Often the pattern of connect/disconnects will reveal more information.
+
Lights can indicate only a small amount of information about your modem. To learn more about what your modem is doing, you can [http://www.ncf.ca/ncf/home/tools/dslUsage.jsp view your DSL usage log] (this link is also available from the NCF StartPage, under 'Internet Access').  Often the pattern of connect/disconnects will reveal more information.
-
 
+
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It is also possible to [[DSL modem web interface|log into your modem]] (there is a computer with a UNIX operating system in there) using a web browser, and then view its event log. For information about the modem's event log, consult the [[Modem manuals (DSL)|modem manual]] for your modem model.
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-
 
+
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== Background information: Stages of DSL Connection-Making ==
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-
{{:Stages of DSL connection-making}}
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It is also possible to [[DSL modem web interface|log into your modem]] (there is a computer with a Linux operating system in there) using a web browser, and then view its event log. For information about the modem's event log, consult the [[Modem manuals (DSL)|modem manual]] for your modem model.
==See also==
==See also==
 +
*[[Stages of DSL connection-making]]
 +
*[[About DSL modem lights - Sagemcom modems]]
 +
*[[About DSL modem lights - SmartRG modems]]
*[[About DSL modem lights - SpeedTouch modems]]
*[[About DSL modem lights - SpeedTouch modems]]
[[Category:DSL]]
[[Category:DSL]]

Current revision as of 20:20, 29 December 2017

The operational status of your TP-Link DSL modem is indicated by lights (LEDs). TP-Link modems have lights to indicate power, the status and activity of the DSL line, and the status and activity of connections to your computer, whether by ethernet or by wireless.

TP-Link modems have lights on the front (8901G and 8950) or the top (8816, 8951, 8961 and 9970).

Information is communicated by whether the lights are on, off or flashing. Activity on a line is often indicated by flickering lights, when the line is active.

This article includes a summary of how to read the lights on TP-Link modems.

Contents

8816 Single Ethernet Port ADSL Modem

Power
Should be solid green. If it is unlit, there is a power problem or the unit is broken. Check that the modem is plugged in and switched on.
LAN (Local Area Network)
Should be solid green if a computer is connected to the ethernet port.
ADSL (Asymmetric Digital Subscriber Line)
Flashes green when the modem is synchronizing, will be solid green once synchronization has occurred.
Internet
Will illuminate green when authentication has been successful, and will flash to show data traffic.

8901G 4-Ports + "G" Wireless ADSL Modem & 8950ND 4-Ports + "N" Wireless ADSL Modem

Power
Should be solid green. If it is unlit, there is a power problem or the unit is broken. Check that the modem is plugged in and switched on.
ADSL (Asymmetric Digital Subscriber Line)
Flashes green when the modem is synchronizing, will be solid green once synchronization has occurred.
Internet
Will illuminate green when authentication has been successful, and will flash to show data traffic.
WLAN light (Wireless Local Area Network)
Will be solid green or flashing green if a computer is connected to the wireless.
Numbers
These lights correspond to Ethernet ports connected. These will show a solid green light when a computer is connected to the corresponding port by Ethernet cable and will flash to show data traffic.

8951ND 4-Ports + "N" Wireless ADSL Modem

Power
Should be solid green. If it is unlit, there is a power problem or the unit is broken. Check that the modem is plugged in and switched on.
ADSL (Asymmetric Digital Subscriber Line)
Flashes green when the modem is synchronizing, will be solid green once synchronization has occurred.
Internet
Will illuminate green when authentication has been successful, and will flash to show data traffic.
WLAN (Wireless Local Area Network)
Will be solid green or flashing green if a computer is connected to the wireless.
WPS light (lock symbol)
Disregard
Ethernet
These lights correspond to ethernet ports connected. These will show a solid green light when a computer is connected to the corresponding port by Ethernet cable and will flash to show data traffic.

9970 4-Ports + "N" Wireless ADSL/VDSL Modem

  1. If the DSL LED is off, check your internet connection first.
  2. If the internet LED is off, check your DSL LED first. If your DSL LED is also off, please refer to Note 1. If your DSL LED is GREEN ON, check your internet configuration.

Internet

The internet light is steady green when the NCF authentication server has accepted your modem's login and password and is ready to provide internet service via DSL to your modem. If the light remains unlit, there is a problem.

If your unit was able to log in earlier and you have not made any changes, an unlit light likely means that there is a temporary network problem (at the Central Office or NCF) making it temporarily impossible to check your login and password. In this case it is best to just wait for the problem to be fixed. You may need to power-cycle or restart your modem for it to notice that service has been restored. If you can get online elsewhere (by dial-up, at a friend's home or at an office or library), you can check the NCF web site to see if others are experiencing problems. If not, report the problem, although network-wide problems are almost always noticed quickly.

If you are installing your modem for the first time and the DSL light is green but the Internet light is unlit, likely your unit has not been configured with a correct login and password. Check the configuration instructions for information about configuring:

Beyond the lights

Lights can indicate only a small amount of information about your modem. To learn more about what your modem is doing, you can view your DSL usage log (this link is also available from the NCF StartPage, under 'Internet Access'). Often the pattern of connect/disconnects will reveal more information.

It is also possible to log into your modem (there is a computer with a Linux operating system in there) using a web browser, and then view its event log. For information about the modem's event log, consult the modem manual for your modem model.

See also