Disable access to admin webGUI for guests (VLAN)

Hi guys,

I set up a guest isolated network.

My LAN settings:


My VLAN settings:


My Virtual Wireless settings:



Guest wifi works fine, internet access works... anyway I would like to disable access from br1 (guest network) to webGUI admin page for router. Is there any working way, because this solution is not working anymore...

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Disable access to admin webGUI for guests (VLAN)