@TP-Link I solved the problem! The problem was with C3150. I replaced the C3150 by an AX73, and the DW2 devices started to communicate with the Sonoff servers again. My final setup is this way now:...

@TP-Link The devices connected to Deco M5 receive IP address from Tp-Link T1600G-28TS or Synology DHCP Server. The C3150 DHCP Server is disabled. I have one IP network between Arris (LAN) and C3150...

@TP-Link Yes, the DW2 devices are listed at Deco App, sometimes it gets IP address and sometimes it don't. The DW2 flashes quickly twice after connected, but appears offline at Sonoff app. Today my...

@TP-Link No errors are show at the device app (interface). It seems to be connected succesfuly, but it does not connect to the Sonoff servers, and because that the device do not work. I made a test...

Hi, After I installed the last firmware (.5.7 Build 20210819 Rel. 43499) at my Deco M5 devices, my 4 Sonoff DW2 stoped to connect to Wifi network. Nowadays I have 39 sonoff devices (Basic, Mini, T2X,...