@Alexandre. Thank you so much for the reply, unfortunatley that didn't help. My Decos are configured in Access mode, and band is now set to 5ghz. I still get half the expected speed. Thanks again!

Hello, I use 3 Deco M4R device at my home. My main Deco is connected to my ISP router, which is using a fiber optic 600MB/30MB line. When I'm connected to Wi-Fi I get very low speed, it drops to...