Event Message:

The master browser has received a server announcement from the computer computer name that believes that it is the master browser for the domain on transport name. The master browser is stopping or an election is being forced.

Source

Event Log

Event ID

Event Type

Browser

System

8003

Error

Explanation:

The subnet mask of the Windows 2000 client computer is incorrect or is different from the primary domain controller. The client computer has attempted to promote itself to the master browser of the subnet and has failed because only one computer in a domain can be running as the master browser.

User Action:

Change the TCP/IP protocol configuration to the correct subnet mask.