Get one static MAC address for Doodgee N30

**tl;dr** How to force Doodgee N301 (or any other device with Android 10) to use single, static MAC address, if _[Use static IP](https://android.stackexchange.com/a/4948/20449)_ checkbox is not available in _Wi-Fi Settings_? ---- To allow my Doodgee N30 to access my home Wi-Fi, I must add its MAC address to the router settings (I have MAC filtering enabled and I am _not_ going to change this). The problem is that, when I type Mac into Settings' search box, I see **two** different places with MAC address: 1. _MAC address_ in ⚙ → _Network & internet_ → _Wi-Fi_ → _Wi-Fi preferences_: Keeps changing all the time. 2. _Wi-Fi MAC address_ in ⚙ → _About phone_: Always the same. What I learnt so far: 1. First one looks like an _Use random MAC address_ feature enabled by default, but I don't know how to disable it; there is no _Use static IP_ checkbox below. 2. Second MAC address is... wrong. I don't know, what it actually is, but adding to router does nothing (i.e. does not enable phone to get access to my home network). Is there anything I can do to force this phone to use one, static IP address? Or the only option is to replace it with any other model that has _Use static IP_ checkbox? 1 This is about Doodgee N30, a rather niche phone, but probably fits to many devices with Android 10 that faces the same problem, i.e. no _[Use static IP](https://android.stackexchange.com/a/4948/20449)_ checkbox.