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My repeater don’t work even when added to the router whitelist

When I am using whitelist in my router, my repeater don’t work even with its MAC address added to the router whitelist.

Perviously (before using a whitelist), I noticed that my repeater has a different MAC address than the one on its back. I also added this MAC address to the whitelist but the same problem exists.

Note: My repeater only extends the wifi range with the same name and password and don’t affect my devices MAC addresses at all. I know Mac addresses are fixed but I’ve read about something like that here on this link:

https://kb.netgear.com/25714/How-do-I-connect-devices-to-my-extender-if-MAC-Address-Filtering-or-Access-Control-Feature-ACL-is-enabled-on-my-router