How to Fix DHCP Lookup Failed on Chromebook?

Dynamic Host Configuration Protocol is one of the best network management protocols offered and it allots IP addresses, standard gateways and different network parameters to client devices. But some users face ‘DHCP lookup failed’ issues on Chromebook after trying to link to the network. This can happen due to the out of date OS, damaged firmware of the router, etc. So, here are some directions to fix this error.

Reboot the Networking Equipment and Chrome

1. Firstly, you have to shut down the system correctly on Chrome.
2. After that, switch off the router or modem and detach through the power socket.
3. Then wait for a minimum of 30 seconds once you plug everything back to the power source.
4. Now, you have to wait for the router or modem to blink the lights.
5. Finally, go to the Chromebook then link the PC to the network of Wi-Fi to look at whether it is removing the issue.

Modify the Sleep Settings of Chromebook

1. You should launch the Settings of the Chromebook.
2. After that, select the Device then choose the Power option.
3. Then invoke the ‘When Idle’ and choose the ‘Turn off Display but Stay Awake’ option from its drop-down.
4. You have to launch the ‘When Lid is Closed’ drop-down and choose the ‘Stay Awake’ option.
5. Later, store the changes and shut the Settings.
6. Now, reboot the device and link to the network to look at whether it is removing the error or not.

Reconnect to the Wi-Fi Network

1. Go to the right side of the screen, select the Wi-Fi button then choose the network name.
2. Thereafter, select the Settings icon to show the screen of Network Settings.
3. Then select the Wi-Fi option.
4. You have to detach the through the network and select the right side arrow icon of the network that you would like to forget.
5. Later, choose the button of Forget.
6. Finally, reboot the system then link to the network and check whether it is working well or not.

Using Google Name Servers for the Network

1. You should invoke the Settings of the Chromebook.
2. After that, beneath the Network, select the Wi-Fi option.
3. Choose the icon of the right arrow of the corrupt network.
4. You have to move down then invoke the Name Server’s drop-down.
5. Later, pick the ‘Google Name Servers’ option.
6. Thereafter, link to the Network then looks at whether the issue of DHCP is fixed or not.
7. Otherwise, reboot the system and redo the method then inside the network settings, choose the ‘Automatic Name Servers’ option.
8. Once more, link to the network then look at whether the Chromebook is removing the issue.
9. Otherwise, launch the Network Settings of the connection then turn off the “Configure IP Address Automatically” option.
10. Change a ‘manual IP address’ for the device as per the IP scheme then reboot the Chromebook.
11. Now, look at whether the device is removing the error of DHCP.

Upgrade Chrome OS of the Chromebook

1. You should link the device to the internet via an ethernet cord or Wi-Fi.
2. Then invoke the Settings of the Chromebook.
3. Reach the left side panel of the screen and choose the ‘About Chrome OS’ option.
4. Later, select the ‘Check for Updates’ option.
5. Once you update the OS, reboot the device.

Now, attempt to link to the corrupt network and look at whether the device is removing the issue.

source: https://ratelr.com/how-to-fix-dhcp-lookup-failed-on-chromebook/