Nov 13, 2018
Thanks for posting in the Community!
The Bose Solo 5 does not have a built in Wi-Fi chip to be controlled over the network like the SoundTouch systems.
Tony A - Community Support
Dec 17, 2018
Jan 3, 2019
I had the same issue as you but found the solution. Open the Alexa app on your phone or tablet that you used to register the Echo device. Tap the "Devices" tab, then tap on "Echo & Alexa", then tap on the Echo you have connected. This will open a menu, "Device Settings", for the Echo. Under the wireless section, there is an option for bluetooth devices, tap it, and you can pair the Echo and Bose from this menu.
If you were like me, I initially tried to pair the Bose by adding a new device, but this will not work as the device itself doesn't connect through WiFi. You need to connect it from the Echo's settings which is entirely unclear.
I hope this helps you if you haven't already found the solution or someone else who is having the same issue.