Master Windows 10 Network Troubleshooting: 12 Essential Command-Line Tools

1. Ping

The Ping command tests the reachability of a network device by sending four ICMP echo requests; lack of replies indicates a connectivity problem. ping [host] Replace [host] with a hostname or IP address such as google.com or techrepublic.com.

2. IPConfig

IPConfig displays the basic IP configuration of each network adapter, including IPv4/IPv6 addresses, default gateway, and subnet mask. Adding the /all switch reveals DNS servers and lease details.

ipconfig

3. Getmac

Getmac returns the MAC (Media Access Control) address of each network interface, which can be used to identify or restrict devices on a network.

getmac

4. HostName

Hostname shows the current computer name that the system uses to identify itself on the local network.

hostname

5. NSLookup

NSLookup queries the DNS server configured on the PC to resolve domain names to IP addresses, useful for diagnosing DNS issues.

nslookup

6. Tracert

Tracert traces the route packets take to a destination, displaying each hop’s IP address and latency, which helps locate where delays occur.

tracert [host]

7. Netstat

Netstat lists active TCP connections, listening ports, Ethernet statistics, IP routing tables, and IPv4/IPv6 statistics, aiding in network problem diagnosis.

netstat

8. Arp

Arp shows the ARP cache entries that map IP addresses to physical MAC addresses. The common /a switch displays all entries.

arp /a

9. PathPing

PathPing combines Ping and Tracert, providing detailed latency and packet loss statistics for each hop between source and destination.

pathping [host]

10. SystemInfo

SystemInfo provides a comprehensive list of system configuration details, including OS version, hostname, product ID, CPU type and count, RAM, network adapter info, and installed updates.

systeminfo

11. Nbtstat

Nbtstat displays NetBIOS over TCP/IP statistics, name tables, and current TCP/IP connections, useful for diagnosing NetBIOS name resolution problems.

nbtstat

12. Netsh

Netsh (Network Shell) is a versatile network management tool that can display or modify network configuration, manage interfaces, configure firewall settings, set wireless profiles, and troubleshoot connections via an interactive shell.

netsh