After attaching a serial-monitor to the Wemos D1 board it gave me the following output: So the IP-Address(192.168.78.105) is in the Deco M9 Plus range instead of in that of the router and the GateWay...

When using your Deco M9 Plus in Acces Point mode, it takes over giving out IPs... If after a power-failure, (or reboot from the main router acting as a DHCP-Server), devices get back online, they get...

Because of all the troubles with DHCP in AP-Mode, I tried to use the Deco M9 Plus in Router Mode. Added a used a network cable to connect the main Deco to whe existing router and set is to...

After installing the M9 in access-mode in my network, I notice some devices cannot be reached anymore. When examining the situation I notice that the IP the devices get is in the range the M9 uses...