@StevenB_BE Also need to confirm that the clients that are currently having problems are all wired or wireless connections? What is the overall network topology of your network? Are only the clients...

@Marytech The first question is in the VLAN Interface, just change the VLAN to Loopback when creating the IPv6 Interface. The second question is not supported as I know.

@LGU Look at your screenshot, did you set up a VLAN? You can set a SSID without a portal in this VLAN to see if the clients can connect to the SSID? Can it ping 192.168.0.253? Suggest that you check...

@bontokiz To achieve WiFi coverage within a certain range, the EAP is a little more suitable. The EAP indoor product has a WiFi coverage radius of 15 metres, so as long as you ensure that there are...

@tl12 The default time interval is 2 minutes if memory serves. The time interval can be changed on the Controller.

@kostas6a3 Check this: https://community.tp-link.com/en/business/forum/topic/570432