@Kevin_Z Outside World --FTTH--> Huawei ONT --eth--> Vodafone Power Station --eth--> Deco M9 Plus --eth--> TP-Link T2500G-10TS switch --eth/fiber SFP--> other stuff (including another M9 two floors...

@Kevin_Z MacBook Pro, here, and no ethernet ports. not sure the USB C-Ethernet adapter I bought truly is 1GB but... will get an original Apple one and try what I can add, in the while, is... ethernet...

hi beginning of August I switched to a new ISP and a 1GB fiber connection (from a 100MB one with old ISP) I'm having, since, a weird issue with my Deco M9 Plus connected to ISP's Vodafone Power...

thank you, Kevin :)

just found you can, on a FTTH connection, connect your own (not ISP's) router straight to the ONT :) thus... router must support Ethernet 802.1q hence the question: does Deco M9 support Ethernet...

ok, thank you leo :)