“Event Type: Error
Event Source: MRxSmb
Event ID: 8003
Event Category: None
Description:
The master browser has received a server announcement from the computer XXX that believes that it is the master browser for the domain on transport NetBT_Tcpip_XXX-. The master browser is stopping or an election is being forced.“
This is simply a network configuration error and nothing more, so don't panic. It's actually a fairly common error when you've got networked computers. Frankly, I wouldn't consider it an error as an error states something is broke. Think of this as an argument between children, "This other computer thinks it's the Master browser, but I want to be!"
What's going on is Windows networking services, specifically MRxSmb, is having a difficult time trying to decide which computer should maintain this master browser list. This browser list service provides a list of computer sharing resources in and on the domain. Think of it as a list provided to workstations that can view network resources within your network neighborhood.
The first thing you need to take into consideration is: Is this a dedicated server on the network or are you running another machine with a Domain Controller?
Let's say it's a dedicated server on the network, then go to the machine specified in the event viewer text that is believing it is the Master Browser for the domain.
go into control panel->administrative tools->services then click on the Computer Browser option, click stop.
(what is? Computer Browser service - http://support.microsoft.com/kb/188001)
Also, double-check the registry settings by making sure the IsDomainMaster to False at:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Browser\Parameters\IsDomainMaster
If you're running a Domain Controller, which you should ideally use as the "master browser", go to each of your workstations and disable the Computer Browser service. In addition, to ensure you've told your workstations not to search for a master browser, you can run a command line utility: BROWSTAT STATUS. This tells you whether browsing is active, how many servers are on the domain, and what their names are.
This will resolve your issue. However, as a disclaimer, only make registry edits if you are completely sure of what you are doing. Also, after you make these changes, it is always in your best interest to reboot the machine. If you are still having issues, you've either done something wrong, else your computers are not on the same subnet.
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