Px12-400r wants to become a master browser in NetBt transport

Hello, community!
My second domain controller say that:
Event Type:    Error
Event Source:    MRxSmb
Event Category:    None
Event ID:    8003
Date:        9/25/2013
Time:        7:01:01 AM
User:        N/A
Computer:    DC-02
Description:
The master browser has received a server announcement from the computer PX12-400R that believes that it is the master browser for the domain on transport NetBT_Tcpip_{FE107059-C039-43FE. The master browser is stopping or an election is being forced.
I understand this situation but not understand what i can do for resolve problem in LenovoEmc px12-400r. I don't see same instruments in webinterface of px12-400r

Hi Lucas_Buck,
Did you scheduled any tasks in the Task scheduler at that time?
It is strange that the network caused the Sleep Reason: Button or Lid.
Additionally, there is a large time span between 8/26/2014 5:11:43 and 2/26/2014 3:21:49.
Please refer to the following KB for more details about the event ID.
Common causes and solutions of browser Event ID 8021 and Event ID 8032 on domain master browsers
http://support.microsoft.com/kb/q135404
Additionally, please update your network adapter driver to the latest version.
Best regards,
Fangzhou CHEN

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    What's the history of this Xserve configuration, of any SAN-based storage, and of this network?
    Whether or not you expect to have a 10-network, you obviously have a 10-network around.   (Quite possibly two 10-network subnets, based on the two addresses shown.)
    Use a managed switch or network monitor or a brute-force ARP and multicast ping to see what's going on with the networks.  Assuming all three networks are /24, the following hackery will probe the network for active IP addresses:
    ping -c4 192.168.1.255
    arp -a
    ping -c4 10.211.55.255
    arp -a
    ping -c4 10.37.129.255
    arp -a
    The Bonjour Browser tool is another GUI-based tool that can explore your network.
    In general, I would not expect an Xserve box to be using a .local top-level domain as its primary DNS host name; that's not usually known for its reliability.
    Intel Xserve boxes can have a second network address around for the LOM, but that setting does not usually show up on the OS X displays other than Server Monitor.  So that's probably not the case, here.  (Well, you may have LOM addresses, but the Xserve LOM is incompatible with link aggregation.)
    Do you have a Fibre Channel SAN around?  If so, that tends to have a private management network.

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