@AbreahamMG Have u tried to change it on 20 MHz from 40 MHz ?

@Chky Have u tried Deco in AP Mode if the other features are not important for you in Router Mode.

@Paffka Can you attach a picture of your Deco label which is on a back side of Deco.

@ImtiazAli I have changed the channels manually and disabled 2.4 GHz backhaul on all nodes for better performance 🥰😎

@Paffka Can you please confirm your hardware versions of both Deco units.

@Chky Are you sure you are facing internet issues because of Deco M9+ ? What about direct connection to starlink router? Have u check starlink app for optimization? Have u check which obstacles are...