@Martineiro Hi, You can follow these steps to have a try. 1. reset your Archer C2, connect only your PC to the Archer C2, then log into the interface of the Archer C2. 2. go to Network -> LAN, change...

@jhyoo what's the version of your current controller ? You can try to reset the switch and re-adopt it on the controller to see if you can fix the issue.

@wuppi You can try to fix the 5G of EAP620 HD in band 1, then reset your EAP225-Outdoor, put it next to the controller and see if it will show up in the controller interface as wireless, if it will...

@EdG-Fla strange phenomenon. Do your other devices work properly with the EAP660? Try to create a simple SSID with a simple password and then connect your Orbit B_Hyve device to this new SSID.

@hoi I think their official website has two articles that can give you some ideas. https://www.tp-link.com/en/support/faq/3155/ https://www.tp-link.com/en/support/faq/887/

@piyul 1. Did you set the link backup function? 2. are you using controller or standalone? 3. do you mean if you manually remove the main WAN then the network will switch, but if the main WAN is kept...