Probably a ghost if you believe in that sort of thing. How old is the house? Have you noticed any strange happenings since you moved into the house?

There is a hack where someone can send an inaudible ultrasonic command to Alexa from outside of the house. It has been documented since 2017. Here's an article about it: https://www.theverge.com/2017/9/7/16265906/ultrasound-hack-siri-alexa-google

I just brought a 2nd Gen Echo Auto. I set it up and works fine till I try and use navigation. My default navigation program with Alexa is Google Maps. I have set up home and work addresses. When I tell Alexa to 'navigate to home' it responds by saying 'getting directions' (forget its exact words) and than it does nothing.

When I look at my android phone it has loaded up Google Maps, but it has not executed directions to home address. If I type the home address into Google Maps on my own it will play the directions through the car speakers fine.

Settings info:

My Google Assist settings are driving mode = on, allow incoming calls while driving = on.

Under Google Maps I went ---> click on profile ---> Settings ---> Navigation Settings (all options are turned on - Mute state = unmuted, Guidance volume = normal, play voice over bluetooth = on, play voice during phone calls = on, play audio cues = on

Under the Alexa app --> Settings ---> Traffic the default app is Maps. My Google Maps app is called 'maps'. It even loads up Google Maps but does not execute directions.

My android phone is using android version 10.

My car supports Android Auto and it is turned on.

I was changing some skills in my Alexa app, disabling and enabling some of the skills I had.
When enabling a particular skill, I was prompted to link my account. This is normal. But every time I tried, I get a message "Unable to link accounts. Your Alexa app needs an update."  For three weeks I couldn't get it to work. At first, I thought it was the skill that was the problem. So I waited to see if the skill would be fixed. Then I thought maybe it's the Alexa app. So I waited for the Alexa app to get an update. Finally I found out that it wasn't the skill or the Alexa app. In a Reddit and a Github post, I read that Amazon changed the way it links accounts and broke some skills. And according to the posts, the only way to fix it is to delete the Alexa app from your phone and reinstall. I did just that, but the problem still persisted. I figured out a different fix that actually worked for me. I logged into my Amazon account with a desktop computer and enabled the skill I wanted from the computer. And then linking my account to the skill worked as expected from the computer. To enable a skill from your computer, just go to https://www.amazon.com/alexa-skills/b?ie=UTF8&node=13727921011 and search for the skill. And then you can enable the skill and link your account. I don't know what's going on with Amazon and their Alexa team. But things seem to be falling apart there.

I have the same issue in the 'group' I created with them being out of sync by just a few seconds. It is annoying when I'm in a spot in the house and get it from both directions.  My group is just called Upstairs and always has been but the out of sync has always been an issue.  :-(

Is there a way to trigger a routine when a specific device connects to my home WiFi?

I'm looking to trigger a different alarm routine whenever my GF sleeps over so she doesn't want to kill me getting woke at 4am..  I'd like to trigger her alarm routine automatically when her phone 'ie MAC address' connects to my WiFi

Clearly I consistently forget