Three of my six 2nd gen sensors do alert me when there is activity but i keep seeing a red alert on all three telling me that there is a weak connection to the base. These three sensors are no more than 25 feet away from the base station. I have reset the system, sensors and even moved the base closer to those three sensors but no luck. Ring tech support tells me that Z Wave sensors which these are take a couple of days to recognize the distance. I bought my system two days ago. I am not convinced that was a right explanation. Anyone else having this issue?