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In Android 10, you get a Random MAC address every time you connect to a new WiFi network.

Make sure it is set to “ Use randomised MAC“. Under Wi-Fi settings, you would see an option called “ MAC address type“. Under Wi-Fi, tap on the gear icon beside the Wi-Fi name. In order to check if your device is using a randomized MAC Address for a particular Wi-Fi, head over to the Settings menu. In that case, you might have to force Android to use a randomized MAC Address. However, if you have a saved network while upgrading from Android 9.0, Android might still prefer using original MAC Address. Starting Android 10, MAC Randomization is enabled by default, when you connect to a new network. If you like to change your MAC address to something specific, check out this article instead. Instead, it builds up a random 12-digit alphanumeric and passes it as your device’s original MAC address. Now, in the simplest terms, MAC randomization blocks your device to use it’s original MAC address. This MAC address is hardcoded by the manufacturer on the device’s network chip and hence, unlike IP addresses, MAC addresses don’t change. MAC address is a 12-digit unique alphanumeric that is assigned to every device that can connect to a network.

On many networks, DHCP lease is set to last many days or is associated directly with a MAC address such that you get the same IP address all the time.How To Get Randomized MAC Address On Any Device So, when you go offline, someone can use your machine’s MAC address and access the network as ‘you’.ĥ)You can get a new IP address lease from DHCP server by changing MAC address. This is especially a threat when you are on a wireless network and are using a public WiFi network like in coffee shops, hotels or airports.Ĥ)If your original MAC address is revealed, an hacker can use it to impersonate you! On many networks (wired or wireless) access is restricted based on MAC address to avoid access to unauthorized devices on the network. A hacker on local network thus can track machines (and thus you) on the network. Your MAC address can be seen by everyone on the local Ethernet network using many simple tools. Note that only one computer would be able to access the same network (no two computers can have same MAC address on same network to access it without any problem)ģ)A very important reason is privacy. So changing the MAC address to old network adapter is the quickest fix instead of telling your ISP to register your new MAC address which may take lot of time.Ģ)If you want to access a network, which limits access based on MAC address, from another machine then you can change MAC address to the one for which you have access. So in case your network card goes boom, the new card you replace it with will have different MAC address and so the Internet wont work. There are many reasons to change one’s Mac address some are listed below.ġ)Your ISP uses MAC address to identify or authenticate your Internet connection. You may need to provide your MAC address to a router in order to successfully connect to a network. The address is composed of up to 6 pairs of characters, separated by colons. A MAC (Media Access Control) address is a number that identifies the network adaptor(s) installed on your computer.Change MAC address.