Losing Bluetooth connection on a PB 1000 Pro can be frustrating. It's a good idea to contact customer service for assistance, as they may have solutions or troubleshooting steps to help resolve the issue. In the meantime, you can try resetting the Bluetooth connection
App on both the speaker and your phone, as well as ensuring that they are within close proximity to each other. Your current system setup looks impressive, and I hope you get the Bluetooth connection issue sorted out soon!