The browser service has failed to retrieve the backup list too many times on transport %1. The backup browser is stopping.

This computer is currently a backup browser. Backup browsers periodically retrieve the browse list from the master browser. This computer could not retrieve the browse list from the master browser five times consecutively.

The Browser 8021 event is usually logged when this event is logged. Possible causes include:

• Network outages,
• Name resolution problems,
• An overloaded master browser, or
• A master browser that is unavailable because, for example, it is shut down or has lost network connectivity.

This event usually indicates poor network health. If the backup browser cannot retrieve the browse list from the master browser, its list becomes stale and therefore unreliable, so it stops being a backup browser. For more information about browsing, see Appendix I: Windows 2000 Server Browser Service on the Microsoft Technet Web site.

If this event is logged more than several times per day, check network connectivity issues. Otherwise, no user action is required.