This Article Applies to:
All Deco models
Typical problem description:
1. Main Deco turned red after creating the Wi-Fi name and password during the setup;
2. Main Deco went solid red after working normally for a long time, rebooting could not get back to green/white.
Possible Reasons and Suggestions:
Case One: the red light is during the setup.
The following issues might cause this problem:
1. The selected internet connection type (Dynamic IP, PPPoE, or something else) is not right, or whether the internet VLAN ID is needed.
----Please confirm with the ISP first whether you have got the correct internet configuration details.
2. The current DNS server failed to detect the internet service; if it was the case, you would get a valid IPv4 address under Deco APP > More > Advanced > IPV4, but no internet.
----Please refer to this link to change the DNS server to be 8.8.8.8/8.8.4.4.
3. The internet service provider might require IP &MAC authentication (very common in cable modem from Charter/ (Xfinity)Comcast/ Cox), such as
My ISP needs MAC address authentication to get internet service
Here is what you can do:
----Power off the modem for about 3-5 mins (or remove the coaxial cable from the modem).
----If still the same, please connect the Deco like ISP modem --- Deco ---<Ethernet cable> --- laptop, and refer to this link to do the mac clone.
Case Two: Deco suddenly went to red after working fine for a long time.
1.Please go to Deco APP>More>Advanced>IPV4. if the IP address is blank, please unplug the cable between modem and main Deco, connect a computer to the modem and make sure the ISP modem is working properly.
---while if there is an IP address, please refer to this link to change the DNS server to be 8.8.8.8/8.8.4.4 as well.
2. then put the cable back to Deco, if the LED is still red and no IP, please email us with the following information:
- The service provider and model number of ISP fiber/cable modem;
- A picture of the IPv4 settings on the Deco APP;
- A picture of the IP settings (IP and subnet, gateway/DNS server) on the PC when it is connected to the ISP modem-How to find IP address on your devices?
Case Three: Deco will randomly turn red during the day.
If it is the case, the Deco might experience a unstable connection. And please refer to the following link for more suggestions:
What can I do if the internet connection is unstable
