Windows 7 / Networking

Tools for Troubleshooting

The following common network problems are listed with the tools most likely to be useful in isolating, diagnosing, and resolving them. These tools are described in the appropriate sections in this tutorial unless otherwise noted.

  • Some clients cannot connect to a server Arp, IPConfig, Nbtstat, Netstat, Network Monitor, Nslookup, PathPing, PortQry, Telnet Client, Windows Network Diagnostics
  • No clients can connect to a server IPConfig, Network Monitor, PortQry, Telnet Client, Windows Network Diagnostics
  • Clients cannot connect to shared resources IPConfig, Nbtstat, Net, Nslookup, Network Monitor, PortQry, Telnet Client, Windows Network Diagnostics
  • Clients cannot connect to the network IPConfig, Windows Network Diagnostics
  • Network performance is poor or unpredictable Network Monitor, Performance Monitor, PathPing, Resource Monitor, Task Manager

Many factors affect network performance and reliability, including remote connections, hardware configuration (network adapters or the physical network connection), and device drivers. Quite often, network difficulties are related to protocol configuration errors. For example, using incorrect settings in networks based on Transmission Control Protocol/Internet Protocol (TCP/IP) can affect IP addressing, routing, and IP security.

Windows 7 provides a collection of useful troubleshooting tools with which you can monitor and test network performance. Next section table lists the most important tools for troubleshooting network problems.

[Contents] [Next]

In this tutorial:

  1. Troubleshooting Network Issues
  2. Tools for Troubleshooting
  3. Table-1 Network Troubleshooting Tools
  4. Arp
  5. How to Identify a Problem with the ARP Cacher
  6. How to Clear the ARP Cache
  7. Event Viewer
  8. IPConfig
  9. Nblookup
  10. Nbtstat
  11. Net
  12. How to View Shared Folders on the Local Computer
  13. How to View Shared Folders on Another Computer
  14. Netstat
  15. Network Monitor
  16. Nslookup
  17. Verifying that the Default DNS Server Resolves Correctly
  18. Verifying that a Specific DNS Server Resolves Correctly
  19. Verifying Specific Types of Addresses
  20. Using TCP for DNS Lookups
  21. PathPing
  22. PathPing Output
  23. Routing Loops
  24. Performance Problems
  25. Possible Connectivity Issues
  26. No Connectivity Issues
  27. Performance Monitor
  28. Data Collector Sets
  29. Windows Resource Monitor
  30. Ping
  31. PortQry
  32. Identifying the TCP Port for a Service
  33. Windows 7 Testing Service Connectivity
  34. Determining Available Remote Management Protocols
  35. Why PortQry Is Great
  36. Route
  37. Task Manager
  38. TCPView
  39. Telnet Client
  40. Testing Service Connectivity
  41. Test TCP
  42. Windows Network Diagnostics
  43. The Process of Troubleshooting Network Problems
  44. How to Troubleshoot Network Connectivity Problems
  45. How to Troubleshoot Application Connectivity Problems
  46. Default Port Assignments for Common Services and Tasks
  47. How to Troubleshoot Name Resolution Problems
  48. How to Verify Connectivity to a DNS Server
  49. How to Use the Hosts File
  50. How to Troubleshoot Performance Problems and Intermittent Connectivity Issues
  51. How to Troubleshoot Joining or Logging on to a Domain
  52. How to Verify Requirements for Joining a Domain
  53. How to Troubleshoot Network Discovery
  54. How to Troubleshoot File and Printer Sharing
  55. How to Troubleshoot File and Printer Sharing from the Client
  56. How to Troubleshoot File and Printer Sharing from the Server
  57. How to Troubleshoot Wireless Networks
  58. Network Diagnostics
  59. How to Troubleshoot Firewall Problems