@samclark24 Usually, you do not need to start from scratch while replacing ISP Router, with Deco mesh in Access Point mode. I went through two ISP Routers while I had Deco mesh. Mine runs in AP mode....

@Whitesnake DIsable dual-band for Deco Main Network and see if it makes the difference. This is the setting:

@AlbertH999 These speed test results mean, you have Internet link with 900Mbps download and 100Mbps upload. Deco M9 Plus is WiFi5, it can't deliver these fast speeds. If you want to hit gigabit...

@ZoloN They now offer beta firmware 1.7.0, which they claim for sure will let you turn SmartDHCP on. You can get it from here: https://community.tp-link.com/en/home/forum/topic/651248

@Walter_I Yes, you can add X50s to Deco mesh consisting of X60. There should be no problems with that.

@AlbertH999 OK, let's start with checking your Deco mesh. For today: 1. In Deco app, there is large "Test Internet Speed" button on main screen. It'll open another page with "Test Speed" in it....