Fault: NetBt log for id4321

1、 The fault phenomenon ：

1） From a period of time ,Windows 2003 Sever Of Windows Event Viewer Of System Log It appears that ID=4321 Of NetBT journal , about 30-60 Every minute . Here's the picture ：

2） If you use ipconfig /registerdns command , Then there is ID=11166 Of DnsApi journal . Here's the picture ：

2、 The cause of the problem ：

1） According to the official explanation , Is the server not found WINS Caused by server . But there is no in the customer's network environment WINS The server .

2） View the network settings and related log records of other servers ࿰