Arlo wireless video doorbell avd2001b. Unable to re-connect to my Arlo 3 Smarthub

[wwb1951]

Unable to connect to my Arlo 3 hub.  It was connected, but since Verizon Fios updated our speed, and router, we are unable to reconnect.  I had to delete my current account, and created another account, and was able to connect all three Arlo 3 cameras, however my new (just bought it) doorbell will not connect to the hub.  When I tried to connect directly to WiFi, I had to hold my phone and the doorbell 4-6 inches apart to sync.  Nothing works.  Charged the battery fully, double check the wifi on my android phone etc.  Any suggestions?  

[StephenB]

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@wwb1951 wrote:

Nothing works.  Charged the battery fully, double check the wifi on my android phone etc.  Any suggestions?  

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Disable the 5 Ghz network in the router if you can.  Also make sure that the security is set to WPA2 (AES) - not WPA3.

FWIW, one way to simplify migration to a new router is to set up the new one to use the same network name and password as the old one.