Ring 2 Video Doorbell disconnects now won't sync with AP

I have the following Ring Video Doorbell with a rechargeable battery. We found we had to charge it often so we bought the cord seen in the second photo. We often had to reconnect the system to our internet and that we also had to recharge the battery even with the plug-in. We got fiber internet a while back and since then I can't connect to the system. I asked for help on the Ring Community Page on FB and they suggested the resistor and that we make sure we are hooked up to the 2.4 ghz option for our internet. My doorbell with literally not RESET or complete a hard RESET. I've tried and tried. I've reset our internet. Deleted the ap and doorbell item off the ap to start all over. I've readded the doorbell back and now the doorbell won't even swirl the light to begin the connection process. Either my doorbell is dead or something else is up. I made sure the battery was fully charged and plugged in before attempting all these steps. The plug in shown is not new and worked for many months without issue. What else should I do?