Hi ted! I’m sorry to see that you are having difficulties with connecting your subwoofer to your soundbar.
So that we can better troubleshoot towards a solution, please reach out to Samsung Support at: 1-800-SAMSUNG, available 8AM - 12AM EST, 7 days a week, or Chat with us on Samsung.com: https://www.samsung.com/us/support/contact/
We look forward to hearing from you. ^Patty