Accepted Manual Signal Source Selection on Deco
Background:
Some users might notice that all satellite Deco units are connected to the main Deco, instead of the nearest satellite Deco.
Typical Layout:
Why does the satellite Deco still keep selecting the main Deco as a signal source instead of the nearest satellite Deco?
Deco will choose the best signal source by itself. The selection does not depend absolutely on the signal strength, but also on the connection rate. Sometimes satellite Deco units may get slower speed due to half-duplex mode and interferences caused by connected devices like phones, or other devices. To ensure the satellite Deco gets reliable speed, the main Deco stays selected by Satellite Deco after comparative analysis.
Some users tested that after moving one of the satellites far enough and not being able to reach the main Deco, they finally get the desired connection map:
However, the speed of the satellite becomes slower than what it could get when connecting to the main Deco directly. Due to the working pattern and protocol/regulation of Wi-Fi technology, the more wireless hops, the slower the speed would be. This rule applies to any kind of mesh or extender system. So it is not always good to connect to the nearest Deco unit.
Solutions
Deco Firmware Updates Adding Signal Selection and VPN for Multiple Models
Related FAQ:
How can I find a suitable spot for my Deco?
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@TP-Link I have 3 Deco BE25 units that replaced 4 M9plus units.
They are all connected via 2.5G capable (Cat6) cables. Randomly the map will switch to a star pattern, where all the satellites connect to the main Deco, and even with the Ethernet connection, the Wifi speeds drop by a lot (about 4x-5x). (Ethernet is in a daisy chain connection WAN-> Main Deco -> Hall Deco -> Bedroom Deco)
Rebooting the closest Deco will then connect it back into a daisy chain pattern, but occasionally the wireless backhaul will go back to connecting to the main Deco which is going through more brick walls. This doesn't seem to affect the wifi speeds as much if at all.
I'd rather not be monitoring my speeds at all times to figure out what the hell is going on.
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