The ring app dashboard keeps reporting one of my online camera disconnect

I have 10 cameras and they all work fine until yesterday the dashboard of the ring app keeping tells me that my Floodlight Camera is offline. I can't go live with it. However, it can be triggered by motion because I can still receive the rich notification when someone goes by before it. If it is triggered, the dashboard will report the camera is back online for just about 1-2 mins and then it will show that the cam is offline again! But I can still see the video clips on the timeline. So I am pretty sure the camera's wifi and the Internet are ok because one: I can receive the notification and, two: it still uploads the videos to the ring server. It is pretty annoying that I can't check the live feed because of this. Is there anyone has the similar situation? Any solutions?