This article has been archived. It is offered "as is" and will no longer be updated.
Source: Microsoft Support
RAPID PUBLISHING ARTICLES PROVIDE INFORMATION DIRECTLY FROM WITHIN THE MICROSOFT SUPPORT ORGANIZATION. THE INFORMATION CONTAINED HEREIN IS CREATED IN RESPONSE TO EMERGING OR UNIQUE TOPICS, OR IS INTENDED SUPPLEMENT OTHER KNOWLEDGE BASE INFORMATION.
Some USB Network Adapters are not listed in Performance Monitor’s list of network interfaces.
Perfmon only shows adapters that indicate that they have a physical, hardware connector. Windows Vista and Windows Server 2008 introduced a new Network Driver Interface Specification (NDIS) known as NDIS version 6. Network driver developers are encouraged to move their drivers to this new specification.
Check with the network adapter vendor to see if they have drivers updated for NDIS version 6.
NDIS miniports that are developed for NDIS 6 can explicitly inform the operating system if it has a physical connector. Those NDIS 6 miniports that indicate a physical connector will properly show up in Perfmon.
While NDIS supports NDIS 5 drivers, it does so in a legacy, compatibility layer and does best-effort to determine if the adapter has a physical connector. If the adapter does not have any hardware resources assigned to it, which is the case for USB NICs, NDIS assumes that the NIC does not have a connector. Perfmon, as a result, will not list the NIC as an available network interface.
MICROSOFT AND/OR ITS SUPPLIERS MAKE NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY, RELIABILITY OR ACCURACY OF THE INFORMATION CONTAINED IN THE DOCUMENTS AND RELATED GRAPHICS PUBLISHED ON THIS WEBSITE (THE “MATERIALS”) FOR ANY PURPOSE. THE MATERIALS MAY INCLUDE TECHNICAL INACCURACIES OR TYPOGRAPHICAL ERRORS AND MAY BE REVISED AT ANY TIME WITHOUT NOTICE.
TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, MICROSOFT AND/OR ITS SUPPLIERS DISCLAIM AND EXCLUDE ALL REPRESENTATIONS, WARRANTIES, AND CONDITIONS WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING BUT NOT LIMITED TO REPRESENTATIONS, WARRANTIES, OR CONDITIONS OF TITLE, NON INFRINGEMENT, SATISFACTORY CONDITION OR QUALITY, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, WITH RESPECT TO THE MATERIALS.