Wow! That is amazing speed and incredibly low latency. I envy you!
I might have missed it if you mentioned it before, but what brand/model phone are you using? Just to eliminate other possibilities, have you tried using the Alexa app on a different brand/model phone?
Are any Bluetooth speakers or any Bluetooth devices (even a fitbit) connected to your phone when the Alexa voice cuts off?
Hehe, thanks. We have a great connection here. My internet plan is actually 500/500Mbps, but obviously the phone isn't gonna pull that.
So I've got a Samsung Galaxy S7 with Android 7.0, rooted/xposed. It occurs to me that there's a possibility the root/xposed might be interfering somehow, but that's not something I can just 'turn off' just to test that theory. Also, one thing worth mentioning is that this problem wasn't always occurring with this phone.
A bit of back story. I'm one of the early adopters of the Echo Auto. When it finally arrived some months ago, I set it up and got it working. There were some hurdles but none related to this issue. For the most part, it worked great for a while. Then suddenly, I started noticing the problem with the Alexa voice cutting out. I thought it was a problem with the Echo Auto so eventually I had it replaced by Amazon, only to find that the problem persisted. I connected the Echo Auto to my friend's phone and the problem was gone. It was about that time I realized the problem was the Alexa app on my phone and not the Echo Auto device.
So something on my phone must have changed. My phone was rooted the entire time so that wasn't it. However, one major change I made to my phone possibly around the same time was updating from Android 6 to Android 7. I'd have to do some serious investigative work to see if that update was done at the same time the problem started happening, but it's a possibility. Unfortunately, it's not so easy to just "switch to another version of android" just to troubleshoot the issue.
To answer your question about trying another phone, as I mentioned already we tested the echo auto using my friend's phone, however one thing I haven't tried is logging in to MY amazon alexa account on another phone. I might just try that. It might be worth noting, though, that I have multiple Alexa devices (echo dots, fire tv cube, etc) and only the mobile phone app exhibits this issue.
Oh yeah... I did talk to amazon support about this and they weren't much help. They just told me I should try updating to a newer version of Android since the one I have is "quite old"... Even though the current version of the app says it supports Android 6.0 minimum. On that note, though, since I can't really update to a newer OS, I decided to try older versions of the Alexa app. Figured maybe a recent version had a compatibility issue that I introduced by updating the app. No go. Even the oldest versions of the app have the same problem.
Again, thank you so much for helping me with this.