I suggest also (if you have the means) to go to YOUTUBE and search for videos to set up Echo Dot 5th gen. Watching a few videos could be very helpful.
When setting up, even with voice recognition, make sure you and your husband are both nearby, patient, and following the cues of the setup. If you are both present and intend to recognize each voice individually, all you have to do is be quiet until it's your turn or his. Set up in the kitchen or bedroom or wherever, and once set up is complete, you can move the Device to the location it will be permanently. Just make sure you give yourself time to complete the setup, without interruption of any kind... turn off any cell phones to eliminate distractions, etc...