@HA4g3n If you just want to isolate guest wifi. Your current settings on the controller seems can work.

@Christian2705 It's a bit wired, I tried the upgrade before with no problems. Was there any error message shown when you upgrade? After you upgrade whether the page shows update successfully? BTW,...

@TheUnF If your IP phone is set to the static IP, the device should not show up in the DHCP Client list.

@morgothtdo You can try to upgrade EAP's firmware version to test. Need to check if the Router is stable. You can also check whether PC will have drop-out issue if the PC is connected to the Switch...

@hebugumua Here is the link on the official website: https://www.tp-link.com/en/support/download/tl-wa5210g/#Firmware

@ricardodesousaf 1. Port Forwarding( Virtual Servers ) requires a fixed intranet endpoint IP address to be set, Port Triggering offers more flexibility as there is no need to specify a specific...