Trouble creating a isolated guest network, isolating not working

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@borgqueenx

but the function "Isolate Clients" is not working. when joining the guest-made wlan, i can still access 192.168.1.1

Correct me if I am wrong, but 192.168.1.1 is the router and client isolation clearly mentions that prevents client-to-client communication.

@borgqueenx

I want the devices that join through this SSID only access the web, preferably through the wireguard interface i have set, but if not possible simply directly to the WAN interface.

Then you need a combination of firewall rules as described in guest wifi along with Policy Based Routing where you have 3 options:

1. mwan3 package
2. pbr package
3. a set of rules/routes for the non default traffic.