Over the years have added a pfsense box and recently a managed switch (Dlink) to the home network. I have the RT-AC68U as an AP (have two of them in mesh to cover more area). Running latest Asus firmware. Would like to have a guest wifi isolated from main network. I can enable guest network but it all goes on main network. Just getting started on vlans and have only done some reading. Have installed ddwrt on a few routers years ago but no scripting or advanced experience. I could press an older really basic router into service as the guest wifi AP on a port of the switch (which as I understand it would then go by trunk to pfsense). But it looks like it might be possible to use the RT-AC68U with vlan to accomplish this. Have read that AP mode may not automatically create vlan tagging like other modes. Can anyone confirm either way? How would I check this that's better than just set up my switch with vlan and see if it works. If I am needing to do scripts or command line config I need to read up on how to do that. I could load Merlin but it seems that doesn't really add to vlan capability.