@Marvin_S Yeah happens on each device which i select for Connection Preferences and when the Connection Preferences back to AUTO after reboot so my client devices back to any deco unit not always...

@JamiryoFC Always use Google DNS 8.8.8.8 & 8.8.4.4 in Deco

@YahyaKm Turned OFF is better for you or ON ? Im confused because u did'nt mentioned ON & OFF 😁

Hey TP-LINK !! I'm using Deco X20 (V3) as a main unit and using (5) Deco M4 (V2) units as a satellite units on beta firmware 1.7.0 but the problem is when i set the prefere deco unit and band to a...

@David-TP Okay now i understand.

@YahyaKm Turn OFF Upnp and SIP ALG and then try again