My phone can still connect to a router when its MAC address has been added to the router's blocklist

Applicable products： HUAWEI Mate40 lite E，HUAWEI Y6p(dual card 3gb+64gb、dual card 4gb+64gb、single card 3gb+64gb)，HONOR 10X Lite(dual card 4gb+128gb)，HUAWEI P40 lite(dual sim card 6gb+128gb)，HUAWEI Mate 30(dual sim card 8gb+256gb、dual sim card 8gb+128gb)，HUAWEI P smart 2021(dual card 4gb+128gb)，HONOR 9S，HUAWEI P smart S(huawei y8p dual card 4gb+128gb)，HUAWEI Mate 30 Pro(dual sim card 8gb+256gb、dual sim card 8gb+128gb)，HUAWEI Mate 30 Pro 5G(dual sim card 8gb+256gb、dual sim card 8gb+128gb)，HUAWEI Y8p(dual card 4gb+128gb)，HONOR 9A(dual card 3gb+64gb)，HUAWEI Y5p(dual card 2gb+32gb)
Applicable system: Magic UI 3.1.1, EMUI 10.1.1, EMUI 10.0.1, EMUI 10.1, EMUI 10.0, Magic UI 3.1, Magic UI 3.0.1
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My phone can still connect to a router when its MAC address has been added to the router's blocklist

Problem:

The MAC address of a phone has been added to a router's blocklist, but it still can connect to the router.

Cause:

When your phone is connected to a hotspot for the first time, a randomised MAC address is allocated, which can be queried in the detailed connection information of the hotspot. If you've added this MAC address to the blocklist and connect your phone to the hotspot again, your phone will still be able to access this hotspot using its device MAC address. In this case, the MAC address in the detailed connection information of the hotspot is its device MAC address (even though it is indicated as randomised).

Solution:

Add both the randomised MAC address and the device MAC address of your phone to the router's blocklist.

To verify the device MAC address of your phone, make sure that Wi-Fi is enabled, and go to Settings > System > About phone > Status.

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