@Andeh1 Connect one of Satellite Deco directly to Main Deco with Ethernet cable, see if it can get Ethernet backhaul. Router --> Main Deco--> Satellite Deco If it does, it is possible switch that you...

@RishiDS 650Mbps is what you should be getting from M9 Plus. I am starting to suspect Ethernet cables. Ethernet standard is gigabit, followed by 100Mbps. If you are getting speeds close to 100Mbps,...

@RishiDS With Ethernet backhaul, you should be getting same speeds from Satellite Deco as you are getting from Main Deco. If you power off all Satellite Deco and run speed test on iPhone 16 standing...

@Cornishman I am afraid you did not read carefully the forum topic I provided. The problem is between Main Deco and Vimin 16 port PoE siwtch. The wired link between them is broken. All symptoms point...

@14paavang Look like it may have that feature, but I can't guarantee. You may need to get X10s, create Deco mesh with them and then check in Deco app if connection preference feature is there.

@Cornishman Check this forum topic to see if it applies to your friend's situation: https://community.tp-link.com/en/home/forum/topic/655034