Windows 10: NPS Server and DHCP Problem

We are running Windows Server 2012/2016 Network Policy Server - With 802.1x authentication, when NPS submits a query to a Domain Controller with a computer name, does it trigger the Windows 10 client to request an extension to the leased DHCP address?

:)

 

The DHCP Server service terminated without a valid clue

Hi Chhetri Suman,

Thank you for writing to Microsoft Community Forums.

DHCP (Dynamic Host Configuration Protocol): Every device on TCP/IP needs unique IP address to access the network. DHCP controls the allotment of IP addresses. However, if
you can access internet, DHCP should work fine. But if there is some issue with the internet, you can follow these steps and resolve the DHCP error.

I suggest you to follow the troubleshooting steps mentioned below:

1. Press Windows and
   R key together on your Keyboard.
   
2. Type Control and hit enter.
   
3. Click on Network and internet > click on Change adapter settings
   on the left pane.
   

4. Right click on the Ethernet connection you are using and select properties.


5. Select Internet protocol version 4 (TCP/IPV4) and click on properties.


6. Check the following radio boxes:

• Obtain an IP address automatically
• Obtain DNS server address automatically

7. Now windows 10 will retrieve the IP address automatically.

Hope it helps.

Roohi Taj S

Microsoft Community - Moderator

 

Communicating with the DNS server

Since you got the error "unable to contact your DHCP server", this could be due to a disabled DHCP client. We suggest following these steps to enable it:

• Click Start.
• Type services.msc and press
  Enter.
• Find DHCP Client from the list of services and check the status.
• If DHCP Client isn't running, right-click it and choose
  Start.
• The DHCP Client Startup type should be
  Automatic. If it's not, double-click it, choose Automatic.
• Click Apply.
• Click OK.

Check if you can use the ipconfig /renew command after enabling the DHCP Client. If you're still unable to connect to the Internet after this, we recommend uninstalling your network
adapter driver by following these steps:

• Right-click the Start button and choose Device manager.
• Click the arrow beside Network adapters and double-click your network adapter.
• Go to the Driver tab.
• Click Uninstall device.
• Restart your computer. This will prompt Windows to automatically reinstall the correct driver.

Let us know what happens after enabling the DHCP Client and reinstalling the network adapter driver.

 

Belle & Anna Radius Negotiation (NPS>PEAP)

It seems its becoming a habit for me to solve my own posts..



The actual result came from a Nokia engineer, which solved the problem completely.



BypassNegotiation

• On the NPS server start regedit.exe
• goto HKLM>System>CurrentControlSet>Services>Rasman>PPP>EAP>25
• Add DREG value BypassNegotiation
• Set the value 0 to 1.
• Restart the NPS Server Service

SOLVED.