The lighting rules of Wi-Fi Router products.

TL-WR850N , Archer C5 , Archer C20
Recent updates may have expanded access to feature(s) discussed in this FAQ. Visit your product's support page, select the correct hardware version for your device, and check either the Datasheet or the firmware section for the latest improvements added to your product. Please note that product availability varies by region, and certain models may not be available in your region.
Note: This Article Applies to:
- Archer C5
- Archer C20
- TL-WR850N
Example: Sample picture of Archer C5:
Example: Sample picture of Archer C5v
Example: Sample picture of Archer C20
Example: Sample picture of TL-WR850N
Part I. LED lighting rules during power on start process
- All LED lights are bright green at the moment of power on, lasting for 0.5s. The Internet lights turned red, while the rest remained green for 0.5s. Then the Power light remain green and all the other lights go out.
- In the start-up process, the Power light starts flashing green (bright 0.5s/ off 0.5s)
- The whole system is started and all LED lights are working normally
Part II. LED lighting rules after start-up
- WAN LED:
• Single color(GREEN)
Status |
Description |
Green On |
Powered device is connected to the associated port but no traffic |
Off |
No powered device is connected |
Green Flashing |
WAN activity present (traffic in either direction) |
- Power LED:
• Single color(GREEN)
Status |
Description |
Green On |
Power on |
Off |
Power off |
- Internet LED:
• Dual color(GREEN/RED)
Status |
Description |
Green On |
Internet connection on but no traffic |
Off |
No Internet connection or device is in Bridge mode |
Green Flashing |
Internet activity present (traffic in either direction) |
- WLAN(2.4GHz/5GHz) LED:
• Single color(GREEN)
Status |
Description |
Green On |
Wireless radio is enabled |
Off |
Wireless radio is disabled |
Green Flashing |
Wireless activity present (traffic in either direction) |
- WPS LED:
• Single color(GREEN)
Status |
Description |
Green On |
This may remain on for 5 minutes when a WPS connection is established, then turn off |
Off |
No WPS connection |
Green Flashing |
WPS connection is in progress. This may take up to 2 minutes |
- LAN(1\2\3\4) LED:
• Single color(GREEN)
Status |
Description |
Green On |
Powered device is connected to the associated port but no traffic |
Off |
No powered device is connected |
Green Flashing |
LAN activity present (traffic in either direction) |
- Phone LED:
• Single color(GREEN)
Status |
Description |
Green On |
The SIP account register successfully |
Off |
The SIP account does not register or registration failed. |
Green Flashing 2Hz, 50% duty cycle |
on-hook and there are voice messages |
Green Flashing 4Hz, 50% duty cycle |
One or more FXS ports are ringing |
- USB LED:
• Single color(GREEN)
Status |
Description |
Green On |
At least one USB external device has been connected and identified |
Off |
Both USB ports are not connected to external devices or cannot be recognized by external devices |
Green Flashing |
Identifying USB external devices |
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