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Are you using multicast or unicast? If you are using unicast, do you have 2 vNICs on the VM and enable mac address spoofing on the NICs?<br />
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What is your hypervisor?
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Are you using multicast or unicast? If you are using unicast, do you have 2 vNICs on the VM and enable mac address spoofing on the NICs?

What is your hypervisor?

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I did forget to enable spoofing. &nbsp;This is now enable however still having the same issue. &nbsp;I'm using unicast with 2 vNICS on Windows 2012 R2.
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I did forget to enable spoofing.  This is now enable however still having the same issue.  I'm using unicast with 2 vNICS on Windows 2012 R2.

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Hello Everyone. &nbsp;I had NLB working perfectly between to virtual terminal servers. &nbsp;However I moved one of the terminal servers to a new host machine (same name and ip addresses) and now I cannot successfully add it to the cluster. &nbsp;I've even totally removed the cluster and recreated it. &nbsp;Basically, NLB will configure the nic properly and then complain that it can't find the server. &nbsp;Also once this happens, you cannot ping the ip address of the server. &nbsp;This part is even stranger, if I recreate the cluster and add the problem server first, everything is fine but as soon as I add the &quot;good&quot; server, the other fails with the same issue. &nbsp;NLB almost acts like it storing some old config information and I'm not sure how to remove it.
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Hello Everyone.  I had NLB working perfectly between to virtual terminal servers.  However I moved one of the terminal servers to a new host machine (same name and ip addresses) and now I cannot successfully add it to the cluster.  I've even totally removed the cluster and recreated it.  Basically, NLB will configure the nic properly and then complain that it can't find the server.  Also once this happens, you cannot ping the ip address of the server.  This part is even stranger, if I recreate the cluster and add the problem server first, everything is fine but as soon as I add the "good" server, the other fails with the same issue.  NLB almost acts like it storing some old config information and I'm not sure how to remove it.

Windows NLB issue after moving virtual server to new host

The Microsoft Legacy Operating System topic includes legacy versions of Microsoft operating systems prior to Windows 2000: All versions of MS-DOS and other versions developed for specific manufacturers and Windows 3/3.1, Windows 95 and Windows 98, plus any other Windows-related versions, and Windows Mobile.

Microsoft Legacy OS

The Windows operating systems have distinct methodologies for designing and implementing networks, and have specific systems to accomplish various networking processes, such as Exchange for email, Sharepoint for shared files and programs, and IIS for delivery of web pages. Microsoft also produces server technologies for networked database use, security and virtualization.