Windows troubleshoot network connection

• Verify that another computer can connect with this jack.
• ipconfig /all
• connections?
• ping 127.0.0.1
• ping self (get ip address from ipconfig)
• ping gateway
• ping dns server
• ping google
• If you can reach some remote hosts but not others, use tracert (win)/traceroute (unix).
• Check Event Viewer logs: System, Application, Security.
• For laptop, check network device power management.
• Go to Network Connection Status. Check Support. Use Repair to reset network caches
• From cmd, run Network Diagnostics with netsh diag gui.
• Task Manager Networking tab
• Find the relevant device in Network Connections and make sure it's not Disabled.

Window networking commands

arp -a                       # list all current arp entries
ipconfig/all                 # list network interfaces
ping some.computer.com       # check if network is up
netstat -rn                  # look for default gateway
nslookup some.computer.com   # check DNS entry
route print                  # show all local network routes
tracert 123.45.67.89         # trace routing to destination