Fix DHCP Server not granting IP: DHCP stands for Dynamic Host Configuration Protocol. It provides the IP address and other related configuration information such as the subnet mask and default gateway to the client. DHCP is important, especially when it comes to large networks because it automatically assigns a unique dynamic IP address to each client. With DHCP the whole process is automated, whereas without DHCP the IP addresses have to be configured manually.
Fix DHCP Server not granting IP:
If DHCP does not work or any related errors occur, you will not be able to access the internet. In this article, we will see what you can do if your router or client fails to obtain an IP address from the DHCP Server.
1] Check DHCP status:
If DHCP is disabled on your Windows device, you will encounter problems like this. Therefore, the first step is to check if DHCP is enabled on the device.
To do so, perform the following steps:
- Open Control Panel – Category – View by – Network and Internet.
- Now, click Network and Sharing Center.
- Double-click Change adapter settings.
- In the General tab, click the Details button.
The Network Connection Details window will open. See if DHCP is enabled. If DHCP is enabled, you will see Yes next to it. If DHCP is disabled on your device, you must enable it. Restart to see if this fixes the issue of DHCP Server not granting IP.
2] Restart the DHCP Client:
The problem you are currently experiencing on your Windows computer can be fixed by restarting the DHCP Client. You can restart it by executing the following commands in an elevated CMD command prompt.
net stop dhcp
net start dhcp
Copy and paste the above commands one by one into the Command Prompt (CMD Admin) and press Enter after entering each command. Restart the computer after executing the above commands.
Alternatively, you can also restart the DHCP Client through the Services application. The same steps are written below:
- Open Run and type services.msc. Click OK. Scroll down and find DHCP Client.
- Right click on it and select Restart.
- Now double click on it to open its properties. Select Automatic in the Startup type.
- Click Apply and then click OK.
- Close the Services application.
Restart the computer to see if it’s ok to fix this DHCP Server error.
3] Temporarily disable antivirus and firewall:
Turn off firewalls and third-party anti-virus software. Antivirus software can conflict with DHCP and this is the most common way to fix DHCP Server not giving IP. After disabling the anti-virus software, check if the problem persists. If this fixes your problem, contact your antivirus customer support.
4] Run Network Adapter troubleshooter:
In Windows 10, open Settings and go to Update & Security > Troubleshoot > Additional troubleshooters. Select Network Adapter and click the Run the troubleshooter button.
In Windows 11, open Settings and go to System > Troubleshoot > Other troubleshooters. Click the Run button next to Network Adapter.
5] Edit network properties:
Misconfigured IPv4 network adapter settings can also cause DHCP errors. If you have defined a custom IP address, we recommend that you change this setting to automatic and see if it helps. The following guide will help you with that.
6] Release TCP/IP, Flush DNS, and reset Winsock:
Open notepad and copy and paste the code below into a text editor.
ipconfig /release
ipconfig /renew
arp -d *
nbtstat – CHEAP
nbtstat -RR
ipconfig /flushdns
ipconfig /registerdns
Then save as .bat eg: ResetNetConec.bat
7] Reinstall the network adapter:
- Press Win + X key and select Device Manager.
- Then, expand the Network adapters node by double-clicking it.
- Right click on your WiFi adapter and select Uninstall device.
- After uninstalling the network adapter, restart your computer.
8] Fix duplicate IP on DHCP Server:
If a duplicate IP address conflict occurs on the DHCP Server, your network device will not be able to obtain an IP address from the DHCP Server and you will receive this error message. If you have assigned a static IP address to your device, change it to automatic. Or you can exclude the static IP address from the DHCP Server. The steps to do that are written below:
- Turn off the problematic DHCP Client computer.
- Open DHCP Settings and exclude the static IP address from the DHCP IP address range.
- Turn on the DHCP Client computer.
9] Configure a different IP address for each VLAN:
If you have connected different computers to the same router through a switch, you need to configure a different SVI IP address for each VLAN. The same IP addresses create conflicts between devices connected to the same router. This will fix the problem.
Conclusion
Above are 9 ways to fix the error DHCP Server cannot grant IP that you can refer to. Hopefully with the instructions that Tutshares.online Computer Tips Blog has shared will be useful to you, wish you success.
