@NoDoubt There is an option to update Deco M5 firmware using downloadable update tool. See How to Update the Firmware of Deco Follow Method 3 from that document.

@Chriscox86 In summary, these are your options: Keep M4s: the speed you are getting, 600Mbps, is the best M4 can deliver. Nothing will change that. Replace M4s: if you replace M4s with Deco X20s or...

Se1lad wrote @Chriscox86 the Deco model you have comes with gig Ethernet ports, so the maximum you would get even if you switched to a wired connection would be approximately 920 Mbps. @Se1lad Good...

@Chriscox86 Deco M4 is WiFi5 device. Maximum theoretical speed of WiFi5 is 866Mbps. Getting 70% of that, 600Mbps, in real life - an excellent result. Sorry for saying this, but you are hitting the...

@Daimorgan1968 When these Satellites that are near Main Deco have connection to it, what does it show in Show List in Deco app? Do they have good links to Main Deco? Example:

@Daimorgan1968 Have you checked that you maybe placed these Satellite Deco too far from Main Deco? If Satellite Deco can't establish link to Main Deco, due to distance/obstacles/interference it will...