The One-Second Answer
- Solid green (system + internet) — online and working. Nothing to do.
- Orange internet light — connected to the modem, but no internet. Reboot the modem first.
- Blinking system / gear — booting or updating firmware. Normal for a minute or two.
- Internet light off — no cable in the WAN port, or the modem is down.
Most TP-Link home routers (the Archer series) show a line of icons — power, system/gear, internet/globe, 2.4 GHz, 5 GHz, LAN, USB, and WPS. The Deco mesh line uses a single colored LED instead. Once the lights are green, our TP-Link router login guide covers reaching the admin page at tplinkwifi.net.
TP-Link Archer Light Guide
| Light | State | Meaning |
|---|---|---|
| Power | Solid green | On and booted |
| Power | Blinking | Booting up |
| System (gear) | Blinking slowly | Working normally on some models, or starting up / updating |
| System (gear) | Off | System error — power cycle the router |
| Internet (globe) | Solid green | Connected to the internet |
| Internet (globe) | Solid orange | Connected to modem, but no internet — ISP/modem issue |
| Internet (globe) | Off | No cable in the WAN port, or modem down |
| 2.4 GHz / 5 GHz Wi-Fi | Solid green | Radio on and broadcasting |
| Wi-Fi | Off | That band is disabled (admin page or Wi-Fi button) |
| Wi-Fi | Blinking | Data activity — normal |
| LAN / Ethernet | Solid / blinking | Wired device connected; blinking is traffic |
| WPS | Blinking | WPS pairing window open (turns solid when paired) |
Note on the gear light: on many Archer models a slow steady blink of the system/gear icon is normal operation, not an error. The light to watch for trouble is the internet/globe icon.
Fixing the Orange Internet Light (the #1 TP-Link Problem)
Orange (some models show red) on the internet/globe icon means the router reached the modem but never got a working connection from your ISP. The router is rarely at fault — work upstream first:
- Reboot the modem. Unplug the modem for 30 seconds, plug it back in, and wait for its Online light to go solid before touching the router.
- Reboot the router. Once the modem is online, power cycle the TP-Link. The globe should turn green.
- Confirm the WAN port. The modem cable must go into the blue internet/WAN port, not a yellow LAN port — easy to mix up after rearranging cables.
- Check the connection type. Sign in to tplinkwifi.net → Internet and confirm the connection type (Dynamic IP, PPPoE, etc.) matches what your ISP requires. A wrong setting after a reset shows up as orange.
- Swap the Ethernet cable between modem and router — a failing cable produces a steady orange light no reboot will fix.
- Verify the ISP isn't down. Check your provider's outage status before assuming the router is broken.
TP-Link Deco Mesh Lights
The Deco mesh line uses one LED per unit with a different color code:
| Color | Meaning |
|---|---|
| Pulsing yellow | Starting up |
| Pulsing blue | Ready to set up in the Deco app |
| Solid blue | Setup in progress / connected to the app |
| Solid green | Deco is set up and working normally |
| Pulsing red | No internet connection |
| Solid red | This Deco unit has lost connection to the main unit or network |
A satellite Deco showing solid red usually means it's too far from the main unit — move it closer and confirm it returns to solid green.
Common TP-Link Light Scenarios
Internet light green but no internet on devices
If the globe is green but devices can't load anything, the connection is fine and the problem is downstream — Wi-Fi, DNS, or a single device. See Wi-Fi connected but no internet.
Wi-Fi light off after a power cut
A band that comes back disabled just needs re-enabling in the admin page, or the physical Wi-Fi/LED button on the router was toggled. Check both.
All lights off
No power. Confirm the power button is on, try a different outlet, and use the original adapter — third-party adapters with the wrong voltage are a common cause of a dead Archer.
When to Call the ISP vs. Fix It Yourself
- Call the ISP — orange internet light that survives a modem-first reboot and cable swap, a confirmed outage, or the modem's own online light won't go solid.
- Fix it yourself — orange light that clears after rebooting modem then router, a Wi-Fi band that's off, or a wrong connection type in the admin page.
Frequently Asked Questions
Why is the internet light orange on my TP-Link router?
It means the router reached the modem but has no working internet. Reboot the modem first, wait for it to come online, then reboot the router. If it stays orange, check the cable in the blue WAN port and confirm your ISP isn't down.
Is a blinking system/gear light bad?
Usually not. On many Archer models a slow steady blink of the gear icon is normal operation. Watch the internet/globe icon for actual connection problems.
What color should my TP-Link router be?
Solid green on the system and internet lights means online and healthy. Orange or red on the internet light means no internet.
Why is my Deco light red?
Pulsing red means no internet (check the modem); solid red on a satellite means it has lost connection to the main Deco — move it closer until it returns to solid green.