A few weeks ago, I switched from Comcast to Verizon. Since that day, I have not been able to connect any of my smart plugs. I have a couple different brands, previously controlled by my alexa without issue. My roommate swears that the internet is compatible even though the plugs are 3.4 only. Any help would be appreciated!
It really depends on the smart plugs.
Have you gone through the procedure that you did during initial install?
Some use wifi (did SSID change) other connect direct to alex unit.
Best to go back to manual and start from scratch