A:Answer Hi kara,
Please perform the following steps below:
Verify that your devices are compatible with home theater mode.
Verify that your Echo speakers are "online" in the Alexa app.
Connect all devices to the same Wi-Fi network.
Turn up the volume on your speakers.
Play a video title from a different streaming media app.
Make sure to select the home theater audio option on your Fire TV device to match your activity. When watching video with your Alexa Home Theater, turn off Gaming Audio (default). For gaming, turn on Gaming Audio.
Restart devices in your home theater group. For Echo devices, temporarily unplug them from power. For Fire TV, go to Settings > My Fire TV > Restart. Wait a few minutes before playing content.
In case the above procedures would not work, feel free to contact us via email or phone. You may also visit our website for more product information: https://www.insigniaproducts.com/
Insignia Products
Lisa
https://insigniaproducts.com