@19_pc_85 Hmmm so are you using any network switch between ISP modem and Deco Unit? What's your linkspeed on phone or laptop after connected to Main Deco WiFi and ISP Modem WiFi? Have you tested the...

@NStone What's your hardware version? Hopefully there is a new firmware available for your hardware aswell. Just confirm your hardware version.

@Murtaza911 No problem ❤️ I hope this firmware will solves all your problem. 🥰

@Murtaza911 Yeah because many people ask the same question and the TP-Link official agent said (YES) this firmware can work on any region around the world. I have attached some screenshots for your...

@rs1975 Using same Wi-Fi name will not do seamless roaming between Deco and Router.

@Murtaza911 You can download firmware 1.2.0 which improve overall Deco performance. You can also check what's new in the firmware. https://community.tp-link.com/en/home/forum/topic/837036