Edited to add: app that is having the problem is from the newest update.i ha e Uninstalled and reinstalled. Version is 2.2.1 running on andriod 12. New update is garbage. It can never "construct encryption channel" for any of my 12 cameras. I have never had an issue before and I have used these cameras for 2 years. fix the app and I will update my rating. (Fortunately I have another phone that doesn't have app update and it works perfectly still).