Windows

1. Open the Start menu and then look for Settings.

2. Click on Network and Internet on the left and then click on Properties at the top.

3. You’ll find the information similar to the screenshot below:
   

MAC

1. Open the Apple menu and click System Preferences.

2. Click Network. Then in the left panel, select the Wi-Fi network you are connected to (if connected via WiFi)  or Ethernet (if connected wired).

3. Click Advanced next to the network you’re connected to.

4. It will then show multiple tabs that pertains to the device’ network connection details.

TCP/IP

DNS

Hardware (or the device MAC address)

iOS

1. Open iPhone Settings and tap Wi-Fi. Then, tap the information icon (i) next to the network you’re connected to.
   

2. It will then lead you to the network connection details page.