@andye85 Try running the Network Optimiser to allow the deco to change channels, just incase its a flooded airspace issue.

@Stainl As a general rule of thumb the Gateway and DNS should be the Router/Hub which for you is the 192.168.1.254 Secondary DNS is likely not required in your setup

@Alexandre. That is also a valid option! Should you go ISP Router, you may want to disable the WiFi on the ISP Router and use just the Deco as the two networks wont integrate cleanly for you.

@ChristosDs Happy days, glad you got sorted!

@Wiggers If its comms as in RF based, its very different from WiFi. When you add massive amounts of OFDM across the wavelength it becomes hugely susceptible to intereference and therefore corruption,...

@Dekel In fairness the M5 was probably never designed for full 1gbps WAN speeds, as a model its been around for a few years now so throughput may be limited, not something I have personally tested...