Re: NetworkManager switches between networks

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On Fri, 2023-01-27 at 13:57 -0800, Geoffrey Leach wrote:
> Home network has two wi-fi sources (Starlink and Netgear, fwiw).
> Occasionally NetworkManager switches betwee primary (Starlink) and
> secondary (Netgear) . I'm assuming that NetworkManager is trying to
> connect to the strongest signal. Is there any way to tell
> NetworkManager not to switch networks?

My experience is that once connected, it stays connected unless signal
is lost.  It doesn't decide to find a better access point while you're
connected to an access point.

If you're getting drop-outs, you may want to see if you can shift the
position of your access points.

If you want it to always try a particular network first, go into your
Network Manager settings, and set a higher "connection priority" for
your preferred network.

This, of course, presumes that you have two configurations, one for
each access point.

If you have just one network configuration, and you've got both your
access points using the same ID names, same channels, etc., hoping that
strongest wins, then you really are going to have to play with the
positioning of your access point and where you are while trying to use
it.

However, there's more to it than that.  The SSID you set as your WiFi
network name in your WiFi router is just one of its names.  There's
another one, that you don't get to twiddle with, that lets your
computers actually tell them apart.

What typically happens with people trying to get their device to
automatically shift to the nearest/best access point without doing
anything, while they roam around, is the device steadfastly tries to
stay connected to the one they initially connected to, even when the
network becomes a notwork, and they have to manually disconnect and
reconnect.

If you want a WiFi mesh, you nearly always have to buy the mesh devices
that are designed to work that way.
 
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