Connection issues after new router install

[Das01]

I installed a new router in my home which has a smart connect feature which selects the ideal network for each device (2.4GHz vs 5GHz). My wired doorbell went offline when this change occurred.  I tried connecting using the QR code generated by the app and it would not connect  but I would get an alert that the router recognized the device and added it to the 2.4 GHz network but it would not ring. After many attempts to figure out how to get the app to connect I figured out that I had to turn off the smart connect feature and choose the 2.4 GHZ network on the router and switched my mobile device to the 2.4GHz guest network. Everything connected.  When I switched my router back to enable  smart connect feature  I lost connection again.  Am I forced to keep my router using the 2.4 GHz configuration in order to get the app and the device to work and lose the 5GHz benefits of my router?

[jguerdat]

What encryption is being used by the new router? Is there a WPA2 (AES) option which is what Arlo uses? I don't know why the smart connect feature would cause this to happen since it should be the doorbell that causes the determination as to what band to use (it only supports the 2.4GHz band and won't respond to 5GHz).  In any event, it should be possible to set the router for separate SSIDs, one for 2.4 and another for 5GHz. You would then use each wireless device to manually choose which SSID to connect to. Certainly not the same as using smart connect but it would allow you to use both bands.

[StephenB]

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@Das01 wrote:

I installed a new router in my home which has a smart connect feature which selects the ideal network for each device (2.4GHz vs 5GHz). 

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Are both of these networks using the same network name and password?  (Usually they are, but I am bit confused by your reference to the guest network in your post).

FWIW, my own router system (an Orbi mesh) uses the same network name/password for all three channels, and several of my Arlo cameras are connected to it.