An error occurred while renewing interface ethernet unable to contact your DHCP server.
Keep reading and get several methods given below to solve your problem.
Step 1: Right-click theStartmenu and selectDevice Managerto open it.
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Step 2: Click to expandNetwork adapters.
All data pipe adapters that the machine has installed will display.
Step 3: Right-hit the online grid adapter you want to update and selectUpdate driver.

Step 4: SelectSearch automatically for updated driver software.
kickstart your machine and check to see if the unable to contact your DHCP server problem has disappeared.
Step 1: Find all web connection adapters following the instructions above.

Right-tap the internet adapter you want to roll back and selectProperties.
Step 2: Navigate to theDrivertab and click theRoll Back Driverbutton.
Step 3: ClickOKand follow the instructions to proceed with the process.
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reset your box and peek if the unable to contact your DHCP server problem still occurs in Command Prompt.
Step 1: Typecmdin theSearchbar, navigate toCommand Promptand chooseRun as administrator.
Step 2: pop in this command:ipconfig /registerdnsand pressEnterto execute it.

Step 3: After the operation is completed successfully, closeCommand Promptand start your rig.
Now, check to see if the unable to contact your DHCP server error alert is gone.
This article will show you 10 useful command prompt tricks for Windows users.
If you want to learn some Command Prompt Windows 10 tricks, check out this post.
Solution 3: Restart/Start Your DHCP Client Service
DHCP Client Service handles these issues.
Step 1: key in theWinkey +Rkey to open theRunbox.
Next, key in services.mscand clickOKto openServices.
Step 2: Locate theDHCP Clientservice in the services list, right-click it and selectProperties.
Step 3: IfService status:is set toRunningwhich means the service is started, click theStopbutton.
If it showsStopped, leave it as it is for now.
Step 4: Set theStartup typemenu toAutomatic.
Confirm any dialogue boxes which may appear.
Step 5: Click theStartbutton now.
Step 6: ClickApply > OKto save changes.