Microsoft KB Archive/237579

= Performance Monitor Logs Lose Data Across Subnets =

Article ID: 237579

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Server 4.0, Terminal Server Edition
 * Microsoft Windows NT Server 4.0 Standard Edition
 * Microsoft Windows NT Workstation 4.0 Developer Edition
 * Microsoft Windows NT Server 4.0 Enterprise Edition

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This article was previously published under Q237579



SYMPTOMS
To connect to a computer across subnets in a multiple-subnet environment with a remote Performance Monitor Session, you must use either the Fully Qualified Domain Name (FQDN), or the Internet Protocol (IP) address. After you connect, you can view data in real-time. However, when you try to capture data to a log, even though the NetBIOS name is resolved and the log grows in size, all objects and counters are lost.



CAUSE
This issue occurs because Performance Monitor is dependent on NetBIOS name resolution when logging data.



RESOLUTION
To work around this issue, use any of the following methods:

Method 1
 Place an Lmhosts file containing the computer name and IP address of the target computer in the %systemroot%\drivers\etc folder of the monitoring workstation. View the Lmhosts.sam file for information about how to do so. Configure TCP/IP to perform a LMHOSTS lookup. For information about how to do so, please click the article number below to view the article in the Microsoft Knowledge Base:

192064 Using LMHOSTS Lookup to Create Multiple Preferred Login Servers



Method 2
Enable DNS for Windows Resolution:
 * 1) Click Start, point to Settings, click Control Panel, and then double-click Network.
 * 2) Click the Protocols tab, double-click TCP/IP, and then click to select the Enable DNS for WINS Resolution check box. Note that a DNS server must also be defined in TCP/IP Properties.

Method 3
Point computer monitoring to a WINS server on the network that has the target computer defined:
 * 1) Click Start, point to Settings, click Control Panel, and then double-click Network.
 * 2) Click the Protocols tab, double-click TCP/IP, click the Wins Address tab, enter the appropriate IP addresses of the primary and secondary (if applicable) WINS servers, and then click OK.

NOTE: Because the computer performing the data logging is the only one that needs NetBIOS resolution, the quickest way to get the Performance Monitor working is to create an Lmhosts file on that machine. This is not an optimal solution for WINS resolution on a large network because these files would have to be on multiple servers and workstations. Also, IP addressing changes would require modification on all computers that have an Lmhosts file.



MORE INFORMATION
For additional information about WINS, please click the article numbers below to view the articles in the Microsoft Knowledge Base:

169790 How to Troubleshoot Basic TCP/IP Problems in Windows NT 4.0

192064 Using LMHOSTS Lookup to Create Multiple Preferred Login Servers

Keywords: kbnetwork kbprb kbui KB237579

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