@g2_ufo Can we confirm the signal strength of the client you are testing with? Before you do the speed test? Also, what's the RX/TX numbers of the tested client? During the test. We need to know...

@Alfredoajc A little more detail on your needs... will every client be passing traffic? OR just connected wireless clients, max capacity? I've seen over 100 on a 670 with ZERO issues and not even...

@Juliemoore Are you asking about the Paid Hosted Controller from TP-Link? OR how the SDN works as a whole with the self-hosted/appliance controller?

@RockPaper the router serves mostly like a dns relay. Most do. Between any vendor. if you want true dns resolution, you will need to host an interal dns server. Adgaurd home and or pihole will...

@Aviv_Malka That must be an old controller version... I do not see it in my OC200 device list.

@MDRAJU Can you confirm your VLAN Settings on the wifi section are correctly entered? What model router/switch are you using?