@Hank21 The issue came on after updating the firmware of the router and switch (and also the 615-wall the day before), it was working fine before. After trying I could get it back to working state...

Hey, I set up an Omada Network with ER605 as Gateway behind ISP modem, SG2008P as switch, and several EAPs 615-wall and 653. The network was working without any issues until today. After the latest...