DHCP Lookup Failed In Chromebook

DHCP Lookup Failed

Your Chromebook may experience DHCP search failure while attempting to link to a network usually due to an obsolete OS, compromised router firmware can also trigger DHCP error, or whether your network uses a frequency that is not enabled by your computer. 

Typically, the impacted person experiences an error while seeking to link to a different network. However, there have been several people who have begun to face it on a network that they have been using for a long time. 

Failed to find DHCP 

Before digging into more comprehensive solutions to repair DHCP loss, consider connecting to another network to null out any hardware problems in the Chromebook. Also, search to see whether other devices may link to an issue network. Contact the organization’s IT administrator if you are utilizing a school or business controlled system, as the computer can be limited to connecting to particular networks only. Aim to prevent all such electromagnetic disturbances, i.e. some Bluetooth system or router in the area. Also, make sure that the network is not set to use the secret SSID. 

In comparison, if you are unable to use a VPN, you should uninstall a VPN device. If you’re using a Wi-Fi Extender, then delete the Wi-Fi Extender as Chromebooks have a reported history of getting problems with them. Also, if a computer designed for the US is used in another country like Germany, the system may have trouble with the router’s performance. 

Solution 1: Adjust the Chromebook Sleep Settings 

Chromebook has a recognized bug in which, if the Chromebook goes to sleep, the computer can refuse to link to the network when it wakes up, and a failed DHCP message may be displayed. In this scenario, adjusting any sleep settings on the Chromebook where it wouldn’t go to sleep when the lid closes can help solve the problem. 

  • Open your Chromebook settings. 
  • Now, select Device, and then click Power. 
  • Now open the When Idle drop-down and pick Turn off Display but Stay Awake. 
  • Switch the display off but remain awake 
  • Then open the When Lid is Closed drop-down and choose to Stay Awake. 
  • Pick the Wake-Up choice 
  • Save your modifications and quit Settings now. 
  • Then restart your computer and link to the network to verify if the error is cleared. 

Note: Note that this would keep your Chromebook from sleeping fully when you shut the cover. Just the screen is going to sign off. It’s a solution, not a cure. 

Solution 2: Restarting your networking equipment and Chrome 

The DHCP error might be triggered by a temporary program or communication malfunction. To rule out any such problem, it will be a great idea to restart your networking equipment and devices. 

  • Do a full shutdown of your Chromebook (just not sleep by shutting your lid). 
  • Switch off the modem/router and unplug it from the source of power. 
  • Wait 30 seconds until you connect it back into a power source. 
  • Wait before the lights of the modem/router are stabilized. 
  • Now, turn to the Chromebook, and then link your device to the Wi-Fi network to verify if the error is cleared. 

Solution 3: Expand the network address list of DHCP 

There could be a defined number of computers that can be attached to a DHCP server. If the maximum number of devices that may link to the DHCP server is reached, e.g. if the DHCP server has a cap of 10 devices and you are attempting to attach to the 11th computer, you may experience a DHCP error. 

In this scenario, the issue can be addressed by attempting to delete any devices from the network or by-the limit of devices that may link to the network. The directions can vary from router to router according to the make and model of the product. 

  • Open your router’s online portal in a web browser and log in with your username. 
  • Now move to the DHCP Settings tab. 
  • Launch the DHCP Tab in the Router Settings 
  • Then raise the DHCP IP limit; if the upper range is, then raise to Such routers often list the number of devices that may be wired to a Wi-Fi network. 
  • Increase the IP Range of the DHCP Settings 
  • Save the updates and leave the portal. 
  • Now try connecting to the network to verify whether the DHCP error is no more. 

Solution 4: Use Google Name Servers for the Network

DNS servers play a critical function in converting IP addresses into human-readable domain names. If your computer is unable to test a DNS server, the DHCP error can be returned. Switching to Google Name Servers can resolve the issue in this situation. 

  • Launch your Chromebook settings. 
  • Now, press on the Wi-Fi choice under the Network. 
  • Click the Wi-Fi choice 
  • Then press on the right-hand arrow of the network. 
  • Select the Right Arrow of the network 
  • Now scroll down and then access the “Domain Servers” drop-down. 
  • Now pick the “Google Name Servers” option. 
  • Using the Google Name Server 
  • Then link to the network and verify if the DHCP problem has been resolved. 

If not, restart your device, then repeat the procedure and, in network settings, choose the “Automatic Name Server” alternative (where Google Name Servers were selected earlier). 

  • Using Servers with Automatic Name 
  • Again, link to your network and verify if the Chromebook is free of an error. 
  • If not, open Network Link Settings and disable the “Configure IP Address Automatically” method. 
  • Deactivate Auto IP Address 
  • Then set your computer’s manual IP address according to the IP scheme and reboot the Chromebook. 
  • Check if your machine is free of a DHCP error while restarting. 

Solution 5: Adjust the frequency band on your Wi-Fi network 

With fast-changing network requirements and frequencies, routers are now capable of communicating at a higher frequency/band channel than it has ever been. If your router is transmitting at a frequency that is not enabled by your computer, you may experience a failed DHCP error. 

In this situation, moving to the recommended network frequency of your computer can solve the issue. The directions can vary based on the specific model of your router.

  • Open your router’s web page and enter your login info. 
  • Now switch to the Wireless Configuration page. 
  • Shift the section, e.g. if 2.4 GHz is selected, then move to 5 GHz, and if 5 GHz is selected, move to 2.4 GHz. 
  • Save the updates and leave the portal. 
  • Now restart the device and then link to the network to see if it is working normally.

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