Windows Server 2012 R2 NIC Teaming and DHCP Issue

Came across a weird issue today during a server deployment. I was doing a physical server deployment and got Windows installed and was getting ready to connect it to our network. Before connecting the Ethernet cables to the network adapters, I created a
NIC Team using Windows Server 2012 R2 built-in software with a static IP address (we'll say its 192.168.1.56). Once I plugged in the Ethernet cables, I got network access but was unable to join our domain. At this time, I deleted the NIC team and the two network
adapters got their own IP addresses issued from DHCP (192.168.1.57 and 192.168.1.58) and at this point I was able to join our domain. I recreated the NIC team and set a new static IP (192.168.1.57) and everything was working great as intended.
My issue is when I went into DHCP I noticed a random entry that was using the IP address I used for the first NIC teaming attempt (192.168.1.56), before I joined it to the domain. I call this a random entry because it is using the last 8 characters of the
MAC address as the hostname instead of the servers hostname.
It seems when I deleted the first NIC team I created (192.168.1.56), a random MAC address Server 2012 R2 generated for the team has remained embedded in the system. The IP address is still pingable even though an ipconfig /all shows the current NIC team
with the IP 192.168.1.57. There is no IP address of 192.168.1.56 configured on the current server and I have static IPs set yet it is still pingable and registering with DHCP.
I know this is slightly confusing but I am hoping someone else has encountered this issue and may be able to tell me how to fix this. Simply deleting the DHCP entry does not do the trick, it comes back.

Hi,
Please confirm you have choose the right NIC team type, If you’ve previously configured NIC teaming, you’re aware NIC teams usually require the assistance of network-side
protocols. Prior to Windows 2012, using a NIC team on a server also meant enabling protocols like EtherChannel or LACP (also known as 802.1ax or 802.3ad) on network ports.
More information:
NIC teaming configure in Server 2012
http://technet.microsoft.com/en-us/magazine/jj149029.aspx
Hope this helps.
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are trying to better understand customer views on social support experience, so your participation in this
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Similar Messages

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    Hi,
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    All Adapers Active
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    Hello,
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    Blog: www.charbelnemnom.com
    Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if
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    Please Note: Since the web site is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information.
    We
    are trying to better understand customer views on social support experience, so your participation in this
    interview project would be greatly appreciated if you have time.
    Thanks for helping make community forums a great place.

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    We
    are trying to better understand customer views on social support experience, so your participation in this
    interview project would be greatly appreciated if you have time.
    Thanks for helping make community forums a great place.

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       Host Name . . . . . . . . . . . . : WIN-4O28FIG5HD5
       Primary Dns Suffix  . . . . . . . :
       Node Type . . . . . . . . . . . . : Hybrid
       IP Routing Enabled. . . . . . . . : No
       WINS Proxy Enabled. . . . . . . . : No
    Ethernet adapter Ethernet:
       Connection-specific DNS Suffix  . :
       Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
       Physical Address. . . . . . . . . : 30-85-A9-94-5B-62
       DHCP Enabled. . . . . . . . . . . : Yes
       Autoconfiguration Enabled . . . . : Yes
       IPv4 Address. . . . . . . . . . . : 192.168.1.13(Preferred)
       Subnet Mask . . . . . . . . . . . : 255.255.255.0
       Lease Obtained. . . . . . . . . . : Friday, June 6, 2014 11:46:30 PM
       Lease Expires . . . . . . . . . . : Saturday, June 7, 2014 11:46:30 PM
       Default Gateway . . . . . . . . . : 192.168.1.1
       DHCP Server . . . . . . . . . . . : 192.168.1.1
       DNS Servers . . . . . . . . . . . : 192.168.1.1
       NetBIOS over Tcpip. . . . . . . . : Enabled
    C:\Users\Administrator>nslookup
    Default Server:  router.asus.com
    Address:  192.168.1.1
    > google.com
    Server:  router.asus.com
    Address:  192.168.1.1
    Non-authoritative answer:
    Name:    google.com
    Addresses:  2404:6800:4001:801::1008
              123.136.105.20
              123.136.105.35
              123.136.105.46
              123.136.105.59
              123.136.105.49
              123.136.105.27
              123.136.105.57
              123.136.105.37
              123.136.105.24
              123.136.105.31
              123.136.105.53
              123.136.105.38
              123.136.105.48
              123.136.105.26
              123.136.105.16
              123.136.105.42
    LAN settings in IE is set to Automatically detect settings, no proxy is selected.
    Sean

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