Alternatively you can check what IP address your Chromebook is using via a terminal windows using Chromium OS Shell (CROSH). 
- In order to open a terminal window, we will need to use shortcut keys. So if from the desktop, we press and hold down the Control and Alt keys, and then press t on the keyboard. A CROSH terminal window will open
 
- At the command prompt type:
 
ipaddrs
- After we press Enter on our keyboard. We are presented with basic information about the network connections our Chromebook has made.
 
- Next scrolling through this list, locate the IP address being used. As a Chromebook is typically WiFi based. You will need to find the connection type wlan0 which is the Chromebooks wireless network connection. 
 
- To make the list of connections shorter, you can use the following command to display only the connections using IPv4
 
ipaddrs -4
- To display only the connections using IPv6 use this command:
 
ipaddrs -6
Note: IPv4, stands for Internet Protocol version 4. This is one of two core protocols used by the internet to allow devices to connect and communicate with each other. However as the internet has grown, IPv4 could no longer provide enough addresses for all the devices connected to it. So IPv6 was developed, to accommodate more devices, as it will create roughly 240 trillion new addresses.
- To close the Crosh simply type:
 
exit