AC86U firmware 3.0.0.4.384_82072
factory reset done before testing
The issue is that once you have defined a bandwidth limitation on Guest network, if you create any specific bandwidth limitation for an individual device (Qos menu, bandwidth limitation) it will break Guest rules. And even if you remove this specific bandwidth limitation, it will not make Guest network limitation to work again ...
The crazy thing is that if you activate a VPN client, then download limitation will work again (but not the upload, that's another issue ...) ...
factory reset done before testing
The issue is that once you have defined a bandwidth limitation on Guest network, if you create any specific bandwidth limitation for an individual device (Qos menu, bandwidth limitation) it will break Guest rules. And even if you remove this specific bandwidth limitation, it will not make Guest network limitation to work again ...
The crazy thing is that if you activate a VPN client, then download limitation will work again (but not the upload, that's another issue ...) ...