@TOSC Configure all ports like GE14 and you done..

@TOSC okay here is a screenshot of a Cisco SG300 in one of my networks, you need to add vlan on the ports that ned vlan, in your case most ports should look like what I have marked. first create vlan...

@TOSC no, it doesn't work with vlan, so you probably have to configure and everything is fine. but to be honest, since you have 30 unifi access points. buy yourself a USW-48-PRO-POE

@TOSC give me 10 minutes, I have a cisco switch here that has reset to deafult, I need to test

@TOSC it sounds strange, I have worked with Cisco for many years, but mostly firewalls but the managed switches must be configured with vlan otherwise they will not work with vlan. it is maybe...

@TOSC yes it sounds strange, when you connect the access points to the switch they get ip from vlan1 or vlan30