This guide will help you understand the meaning of the yellow light, its common causes and the steps you can take to resolve the issue quickly and effectively.
What the Yellow Light Actually Means?
When you see the Deco yellow light, it is generally telling you one of three things:
- If it is booting up.
- It has lost connection to the internet.
- Your modem or ISP is acting up.
Most of the time, it is due to because it has lost connection to the internet.
Common Causes of the Deco Yellow Light
The common reasons of this Deco yellow light are:
-
Internet connection issues
- Loose or faulty cables
- Outdated or corrupted firmware
- Network configuration errors
- ISP-related outages
- Overloaded network with too many devices
- Hardware malfunction
The common reasons which causes the Deco yellow light are clear. Now it is the time to discuss about the solutions.
Troubleshooting Tips
Reboot- The Initial Step
A lot of people directly get into advanced settings and firmware updates. Firstly, keep it simple. Here is what to do:
- Unplug the Deco.
- Unplug your modem.
- Wait a solid 2 minutes. (Yes, the waiting matters.)
- Plug the modem back in. Wait until all its lights look normal.
- Plug the Deco back in.
With this the Deco yellow light goes away and internet comes back.
If not then keep reading.
Look at the Cables
Make sure that your Ethernet cable is plugged in firmly. If not then just unplug it and push it in firmly until it clicks. Make sure it is in the correct port means that the main Deco goes to the modem’s LAN port and not WAN. If the cable is old or bent then replace it. Bad cables cause more internet issues.
Test the Modem
You need to check out if it is the Deco or the modem which is creating issue.
- Disconnect the Deco completely.
- Plug a laptop or desktop directly into the modem with an Ethernet cable.
If you have internet this way, the modem is fine and the Deco is the problem. If you don’t have internet, your ISP is the problem call them.
Time to Reset (The Last Option)
If everything else fails, it is time to check out how to reset Deco in the right way.
Here is how to reset Deco properly:
- Find the little reset button on the bottom or back of your Deco unit.
- Grab a paperclip or SIM ejector tool.
- Press and hold for about 10 seconds until the light turns solid yellow.
- Release and wait for it to reboot.
This removes all your settings, so you’ll have to set it up again in the Deco app. This usually fixes those annoying Deco yellow light issues when nothing works.
Prior to reset, make sure that you have got your ISP login details if your connection needs them.
Firmware Update
Outdated firmware can quietly break WiFi 6. If you had Deco yellow light problems coming up every few days, then updating a firmware can actually help.
- Open the Deco app.
- Go to “More” > “Update Deco.”
- Let it do its thing.
This will not fix a dead connection right now, but it can stop future problems.
Placement Actually Matters
If your Deco keeps dropping connection, try:
- Keeping it in open space (no walls right next to it).
- Don’t place it near microwaves or big metal objects.
- Make sure that it should not be in a hot spot as heat messes with electronics.
Most of the Deco yellow light issues go away just by repositioning it a little bit.
The Bottom Line
The Deco yellow light is annoying, but it is not permanent. Most of the times, it is a connection glitch between your modem and Deco. Always start with restart. Cable checking saves you from lot of issues. And if you know how to reset Deco properly helps you when nothing else works.
If you have been stuck with it for days and nothing in this list worked, call your ISP or TP-Link. Sometimes the problem is just not on your end, no matter how many times you reset the thing. But now you know the fixes that actually work then you can fix them easily.
