It would be really helpful if you’d provide the following information so our engineer colleagues can identify and solve your problem sooner.
Which device has the problem? Viewer or Camera - i think the camera. My viewer device will not connect and https:/alfred.computer fails to load
Device Model Name: Android
OS Version: no idea, but the phone is only 4 months old as of Feb. 2018
AppVersion: whatever the latest version of Alfred is. i installed yesterday