Add additional phone Floodlight cam 2k

How do you add an additional phone for the floodlight cam 2k. I had it on my phone but when i did my wife’s I lost my connection

I believe what you want to do is share the device with / family and friends.
Here’s a help link.
https://support.eufylife.com/s/article/Share-Your-eufySecurity-Devices-With-Your-Family