How to find your IP address in macOS or Mac OS X
ZachThis guide will tell you how to find your Mac's IP address using Terminal.
If you need to find your IP address on Windows 10, we have a different guide for that.
Navigate to Applications > Utilities > Terminal.
ifconfig |grep inetSeveral lines will be returned; your IP address will be the one on the last line, just after the word "inet".
"Installation failed" is a pretty common MacOS error that can occur during updates or upgrades.