I made the leap a few days ago and purchase two new echo+'s for my home. However, I'm having problems getting Alexa to learn my voice, Their is a couple of adults in my household. Having gone into the app and clicked consent to setup a new voice, I always get the following alexa respose.
"At this time I'm having trouble learning your voice".
Hi Rich.G..... I had exactly the same problem.... depending on your location you need to change the language settings....I'm in the UK and my echo dot was set by default I presume to English United States ,changed to English United Kingdom and learn my voice worked on the first attempt