We just installed the V2 smart lock. I paired it to my phone. I've tried sending ekeys to practice before we rent out our Airbnb, to my husband. They show up on my app but my husband never receives them? Do I need to be near the actual lock to create a passcode or send an ekey? We don't live near the home we will be renting out. If the guest is required to have the app on their phone, how do they use it? My husband has the app but it keeps saying pair to a lock which he can't and it won't allow him to anything else. We need to figure this all out before our first guests arrive.