Android security tools function by limiting your apps’ access to your device’s serial number, and other identifying information. It also gives you a little more protection when using Wi-Fi networks by randomizing your device’s MAC (media access control) address.
If you use your device for business, your organization might require the Wi-Fi MAC address of your device in order to make a wireless connection. The Wi-Fi privacy settings use randomized MAC addresses by default, so you will need to manually change this to “Use device MAC” by following the steps below:
1) Wi-Fi with password lock
a) Touch “Settings”.
b) Touch “Wi-Fi”.
c) Touch the Wi-Fi name to enter the password input interface.
d) Touch “Advanced options”.
e) Touch “Use randomized MAC” under privacy, then touch “Use device MAC” in the pop-up menu.
f) Then input the correct password to connect Wi-Fi.
2) Wi-Fi without password
a) Touch “Settings”.
b) Touch “Wi-Fi”.
c) Touch the Wi-Fi name to save the Wi-Fi.
d) Touch the “Setting” button with Saved status in the list.
e) Touch “Advanced”.
f) Touch “Privacy”
g) then touch “Use device MAC” in the pop-up menu