There are MAC-addresses, which are invalid because of value, like multicast MACs, etc, so it is better to show, what exactly you want to configure.

EAP Controller doesn't collect personal data. Hostname/MAC-Address of the host is not the personal data. Personal data can be collected, when you auth via SMS or maybe facebook, etc.

oker wrote For all I know, the EAP120 support roaming. But user disconnect with the AP first then connect the next AP in a short time. It isn't seemless. That AP is already EOL for a long time. It...

Antenna's dbi + AP's transmit power dbm = EIRP. If you have 100mW limit, which is 20dbm, then TL-WA5210G has 12dbi antenna, so you can use only 8dbm transmit power. If you want to follow the law....

So, RED is some base station, which receives Internet, right? I am really not sure 4 APs will be enough for you. Moreover, you have some buildings between APs. If you can put APs above the buildings...

No, I feel TS is talking about bandwidtch control, which calls Rate Limit in Omada solution. Just check for Rate Limit in User Guide.