How to Troubleshoot the "Unable to Contact your DHCP Server ...

When you try to lease, release, or extend an IP address, you may receive a “Cannot contact DHCP server” error message. What should you do? Read this message in IR Cache. You will find several valid solutions to this problem.

An error occurred while upgrading the Ethernet interface – you cannot contact your DHCP server. If you try to run the command: ipconfig /renew, you may also get the error “unable to contact your DHCP server”. This means that your network card cannot contact the DHCP server to get the new lease which is used to get the new IP address.

Read on to find out how to solve this problem using the methods listed below.

What causes the “Cannot contact your DHCP server” error?

The error often occurs after trying to run the “ipconfig /renew” command at the command line, and solving Windows problems that depend on this method can become difficult. Below are some methods that have worked for other users. Try them and hopefully you will solve your problem!

How to fix the “Cannot communicate with the DHCP server” error

Update or reinstall the network drivers

Follow these steps to update your network drivers:

Press the Windows + X key and select “Device Manager.”Select a category to see the device names, then right-click the device you want to update.Select the Update Driver.Click Verify driver software update automatically.When the update is complete, you are ready to go.

To reinstall the network drivers, do the following:

Press the Windows + X key and select Device Manager.Find your network device, right-click it, and select Uninstall Device.Check the Uninstall driver software for this device option.Select Uninstall.Click the Check Hardware Changes icon.Windows will now try to install the default driver.

If Windows does not find the new driver, you can try looking for it on the device manufacturer’s website.

Downloading drivers manually may result in installing the wrong driver, which can lead to serious malfunctions.

The safest and easiest way to update drivers on your Windows 10 PC is to use automated software.

Enable or disable DHCP

To disable DHCP, follow these steps:

Press the Windows + X key and select “Network Connections.”Double-click the active network connection.Select Properties.Click on Internet Protocol Version 4 or Internet Protocol Version 6.Select Properties.Click the Use the following IP address button.Enter the values for your IP address, subnet mask, etc.

Be careful if you disable DHCP and switch to a static IP configuration. If you enter the wrong settings, your Internet connection may not work.

To enable DHCP, follow these steps:

Press the Windows + X key and select “Network Connections.”Double-click the active network connection.Select Properties.Click on Internet Protocol Version 4 or Internet Protocol Version 6.Select Properties.Click both Obtain an IP address automatically and Obtain DNS server address automatically.Click OK.After re-enabling DHCP, be sure to restart the computer to apply the changes.

Register your DNS

Type cmd in the Start menu.Open the command prompt.Type ipconfig /registerdns.Type exit at the command prompt.Reboot the computer.

Frequently Asked Questions

Press the Windows + X key and select Device Manager.Select a category to see the names of the devices, then right-click on the device you want to update.Select Update Driver.Click Automatically check for driver software updates.When the update is complete, you are ready to go.

The DHCP server is part of your router. It assigns unique IP addresses to different devices on your home network. If another device on your network uses the same IP address as your console, your console won't be able to connect to the network. You can try resetting your router to its default settings.

Use the network troubleshooter.Configure your network card settings.Enable the DHCP client.Check Windows Firewall.Temporarily disable your main antivirus software.Disable your proxy server.Restore your drivers.

To use ipconfig, simply open a command line window and type "ipconfig". When you do, Windows NT will display an overview of every network adapter installed on your system, along with its TCP/IP configuration. The ipconfig command is especially useful for diagnosing DHCP problems.

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