Quick Command Reference
Copy-paste commands for Windows, Linux, and macOS.
If tech support asks you to run a command, copy it from here.
Windows
Open Command Prompt (Start > cmd > Enter).
Renew IP address (if internet is broken):
ipconfig /release
ipconfig /renew
Flush DNS cache:
ipconfig /flushdns
Show network details (IP, MAC address):
ipconfig /all
Ping test (Google DNS):
ping -n 10 8.8.8.8
Ping test (Local Gateway):
ping -n 10 10.0.0.1
(Note: 10.0.0.1 is an example. Find your actual gateway in the “Default Gateway” line of ipconfig.)
Linux
Open a terminal.
Renew IP address (DHCP):
sudo dhclient -r && sudo dhclient -v
Show network details:
ip addr show
or
ifconfig
Ping test:
ping -c 10 8.8.8.8
macOS
Open Terminal (Command + Space > Terminal).
Renew IP address:
sudo ipconfig set en0 DHCP
(en0 is usually Ethernet. If you are on Wi-Fi, try en1.)
Flush DNS cache:
sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder
Ping test:
ping -c 10 8.8.8.8