Do you have a Samsung Smart TV in the neighbourhood, like in the answer from Arnold Gahleitner I found in a different thread?
[[JBL Charge Troublshooting#comment-326979]]
I had the exact same Problem - after long searching i figured out , that my Samsung Smart TV (Series 5 ) was sending a Bluetooth signal, which caused the problem on the Pulse 2.
When i plug out my TV from the electricity, the Pulse 2 is working fine....
Arnold Gahleitner - gisteren