How to fix dhcp lookup failed error on Chromebook

You may face dhcp lookup failed error on your Chromebook that usually pops up when you try to connect to a new network. However, the issue can appear even on the network you have been using for a while. There are many reasons why this error can show up, and some of them are corrupted firmware, OS that is not up to date, and more. Let’s see how you can fix this.

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Before we list the solutions, here are several things for you to do right away. See if other devices can connect to the network and you try to connect to another network. This will help you figure out if there is some hardware issue with your Chromebook. If you are using a VPN client, disable it.

Restart your modem and your Chromebook

When it comes to Chromebooks, desktops, phones, etc. whenever something isn’t working as it should, a restart is recommended. It can solve a variety of minor bugs and glitches so that’s the first thing you should do. Turn your Chromebook off. Then unplug your modem/router from a power source. Wait for a minute or two and plug it back in. Again wait for a bit until the lights are completely stabilized. Once that happens, turn your Chromebook on and try to connect to the network.

Forget the network then connect again

The next thing to try is forgetting the network, then connecting to it again. Here is what you need to do:

  • Click on the Wi-Fi icon in the bottom-right and then click on the network
  • Now click on the gear icon to open the Settings
  • Click on Wi-Fi
  • Choose Disconnect from the network
  • Click on the arrow icon on the right side of the network and click Forget
  • Restart your Chromebook
  • Try connecting to the network.

Sleep Settings

Changing Sleep Settings could fix the problem.

  • Open Settings > Device > Power
  • Click on the dropdown menu right next to “When Idle”
  • Choose Turn off Display but Stay Awake
  • Now click on the dropdown menu right next to “When Lid is Closed”
  • Choose the option Stay Awake
  • Exit the Settings and restart your Chromebook.

Google Name Servers

Switching to Google Name Servers could fix the problem. To do that:

  • Go to Settings > Network > Wi-Fi
  • Click on the arrow right next to the network
  • Scroll down and click to open a drop-down menu next to Name Servers
  • Select Google name servers
  • Restart your Chromebook and try to connect to the network.

If nothing’s changed, go back to Name Servers and select Automatic Name Servers. Try to connect to the network.

Still nothing?  Go back to network settings and turn off the option Configure IP Address Automatically. Set up the IP address manually and then restart your Chromebook.

OS update

The outdated OS could be the problem. Here is how to update it:

  • Connect to some other Wi-Fi network if possible, or connect using an ethernet cable
  • Go to Settings > About Chrome OS > Check for Updates
  • When the update is installed, restart your Chromebook

Reset the modem or router to factory defaults

This can also solve the problem. Since there are many models out there, the steps may vary, so find the manufacturer’s manual and lookup for the steps to factory reset your modem or router. If you got a modem or router from your carrier, contact the carrier and ask for the steps on how to perform a factory reset.