Setting up ADFS Servers – Part 4

Installing and Setting up Windows NLB


If your ADFS server is running on a virtualization technology, you have to verify that the NIC card has a static MAC address assigned. Windows NLB does not support dynamic MAC address assignment.

  1. Install the NLB service from the Add features wizard on ADFS01 and ADFS02


  2. Click Start -> Administrative Tools -> Network Load Balancing Manager


  3. Click the ‘Cluster’ menu


  4. Click ‘New’


  5. Enter the host name for the ADFS server and click ‘Connect’


  6. Connection status should say ‘Connected’ and the ‘Interfaces available for configuring a new cluster’ should show the IP address of the ADFS server. Click ‘Next’


  7. Verify that the ‘Priority (unique hose identifier)’ is set to 1


  8. Verify that the default state is set to ‘Started’. Click ‘Next’


  9. Click ‘Add’ on the Cluster IP Address window.


  10. Enter the Cluster IP address and subnet mask, Click ‘OK’, Click ‘Next’


  11. Enter the ‘Full Internet name’ –


  12. Change the ‘Cluster operation mode’ – Multicast


  13. Click ‘Edit’


  14. Change the ‘Port range’ – From: 443 To: 443


  15. Change the “Protocols’ – TCP


  16. Click ‘OK’


  17. Click ‘Finish’


  18. This will add the ADFS server to the cluster. Verify that the server was added and the status should be converged.


  19. Add ADFS02 into the ADFS NLB Cluster


  20. Add DNS records to your internal DNS zone

Multiple Servers – Add an internal DNS ‘A record’ for ADFS Server Farm name; which will be the IP address of the NLB cluster; NOT the ADFS server. Keep in mind that the goal is to have multiple ADFS servers that will be load balanced. We want all traffic to be directed to the cluster IP and then let the cluster decide what ADFS server to send it to.


Farm Name –

NLB Cluster Name –

IP Address of NLB Cluster –

Single Server – Add an internal DNS ‘A record’ for ADFS Server Farm name. Keep in mind that the ADFS server farm will be on the same IP address as the ADFS server.


Farm Name –

ADFS Server IP –

IP Address of the Farm –

The Complete Series of Posts


  1. Open Office 365 Account and Sign up for the E Plan Trail
  2. Add and Verify the primary SMTP domain
  3. Setting up ADFS Servers with Windows NLB
    1. Part 1
    2. Part 2
    3. Part 3
    4. Part 4


  4. Setting up ADFS Proxy Servers with Windows NLB
    1. Part 1
    2. Part 2


  5. Setup Directory Synchronization to Office 365

6.   Force AD Synchronization with Office 365

Thanks for visiting and reading my posts. I am always looking for more ideas. Please comment or email me with what you would like to see.

Kelsey Epps

Office 365 MVP

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