No connection: Pro 5, Essential camera, wired doorbell camera

[VideoLess]

We have a Pro 5 camera, an Essential camera, and a wired doorbell camera. The solar panel for the Essential stopped working over a month ago. The cameras were functioning until our internet provider started throttling our connection and pushed us to upgrade to their new modem. Internet and wifi are both working again. I have only been able to re-connect the older Essential camera to wifi. The Pro 5 and the doorbell refuse to connect regardless of how many times I try. 2.4 ghz is supported by our wifi & WAP, I have created a separate 2.4 ghz point for them, and added a wifi-booster to ensure they have an appropriate strength signal. Still nothing. I am unsure why the older camera that's 2.4 only didn't have an issue with connecting while the others cannot to the same wifi. I'm about ready to toss them in the trash and cancel my plan. Is this an issue others are having? 

[jguerdat]

Did you try the reset procedures fully?

For the camera:

https://kb.arlo.com/000062438/How-do-I-factory-reset-and-re-sync-my-Arlo-camera

For the doorbell:

https://kb.arlo.com/000062346/How-do-I-reset-my-Arlo-Essential-Video-Doorbell