Deco X50 Won’t Get Internet Connection? Need Solutions (2025)

The X50 is one of best Deco models that TP-Link has ever launched. But it’s a technology that can trouble users with so many mini-issues. One of the glitches is Deco X0 won’t get internet connection. So, let’s find out what is happening and how you can resolve it easily.

Why Deco X50 won’t Get Internet Connection?

• Wrong connection type: Deco defaults to DHCP. But if your ISP uses PPPoE, or static IP, it’s just going to sit there with no internet. Check your ISP details. If you need PPPoE, punch in the username and password. Static IP? Enter it.
• Modem not reset: If you swap routers and don’t power-cycle your modem, some ISPs won’t hand out a new IP. It’s like the modem “remembers” the old MAC address. Quick fix: unplug the modem for at least 5–10 minutes. Some cases even need a full hour. Plug back in, then restart the Deco.
• VLAN tagging: Some ISPs require VLAN IDs (common with fiber setups). Deco doesn’t auto-detect that. You have to manually set it in the WAN settings. If your ISP gave you some random VLAN ID (like 35 or 500), that’s where it goes. Without it, no internet.
• Double NAT mess: If you’re plugging the Deco into another router, sometimes it just clashes. Either set the ISP router to bridge mode or let the Deco run in Access Point mode instead of Router mode. Otherwise, you’ll get “connected but no internet.”
• ISP lockouts / MAC binding: Certain ISPs bind the connection to the MAC address of the first device that connects. If your Deco isn’t that device, tough luck.
• Firmware bugs: Yes, sometimes it’s just TP-Link’s firmware. The Deco red light is the signal for that glitch. Update it through the app (use mobile data to push the update if Deco is offline).
• Cable or port issues: Sounds dumb, but worth mentioning. Try swapping the WAN cable, try the other Deco unit (if you’ve got multiples). Make sure the cable is going into the right port.

How to Solve Deco x50 won’t Get Internet Connection?

Check the modem first.

Unplug ISP modem/router, wait for 30-60 seconds, plug it back in. Then power-cycle the Deco. Sometimes the Deco just won’t grab a fresh IP until the modem resets.

Make sure it’s in the right port.

The X50 has a couple ethernet ports. The WAN port is the one you want going to your modem.

ISP weirdness with MAC addresses.

Some ISPs only allow one device (they “lock” to the first MAC address they see). If you swapped out another router for the Deco, the ISP might still be holding on to the old MAC. You can fix this either by:

• Restarting the modem (again).
• Or in the Deco app: go to More > Advanced > MAC Clone and set it to use your old router’s MAC.

Try PPPoE if DHCP isn’t working.

If your ISP uses PPPoE (a lot of DSL and some fiber providers still do), you’ll need your username/password. In the Deco app, set internet connection type to PPPoE and punch those in. If you don’t know, call your ISP—they’ll tell you.

Update the firmware.

Connect Deco temporarily through another router just to update it. After updating, it starts grabbing the internet fine.

Last resort: factory reset.

Hold the reset button on the bottom for about 10 seconds. Wipe everything, redo the Deco X50 setup again fresh. Sometimes it clears out whatever glitch is stuck.

End Lines

Hope this troubleshooting guide have helped you resolve “Deco x50 won’t get internet” problem and you are now connected with the mesh network.