@Andeh1 Your Deco app screenshots show that both Satellites use WiFi link. That usually mean issues with the switch, it might not support Deco Ethernet backhaul. This is TP-Link switch you said,...

Rossy100 wrote @Kiu Thanks. I am assuming then that there is no difference (other than name) between IoT network and guest network configured for 2.4 only? @Rossy100 There are differences, as far as...

@morsify Keep fast roam on. Keep "Mesh Technology" setting on. For Main Network, turn off 2.4 GHz, leaving 5 GHz only: That will convince most of devices connect to the nearby Deco unit on faster but...

@BreLeB In theory, if PC can't connect to Deco, it should connect to another Deco. That's why it is called "preferred connection" and not "mandatory connection." Occasionally, that might not work....

@BreLeB I had similar situation once. Bring PC and that Satellite Deco close to each other (PC to Deco, Deco to PC - does not matter), so that they can see each other and PC can connect to that Deco....

@Andeh1 I will need more info from you in order to help you troubleshoot the problem: 1. A network diagram - need to know how your Deco now connect to each other, to the switch, to router, etc.; 2....