Doorbell and Indoor Camera Live View Not Working

Live view just randomly stopped working on my Wired Doorbell Pro 2 and 1 of a few indoor cameras I have set up. It’s still connected to WiFi with a strong signal, and updates snapshots every 30 seconds as I have set in the settings, but no matter what I try the Live View refuses to work. Keeps showing me the “Failed to Connect” message… These cameras are only a few months old. How is this even possible? I keep finding threads about this same issue, but it’s impossible to find an actual solution. Does anyone have a solution other than selling these pieces of garbage on eBay?