Bluetooth problem since factory reset

[eastclif]

I have a Note 3, and have had Lollipop 5.0 for quite some time now, and I have a Sony SRS BTS50 Bluetooth speaker. The speaker has worked fine with the phone for several months. A few weeks ago, I had to do a factory reset for a reason unrelated to Bluetooth. I'm still on 5.0. Since the reset, the phone does not "see" the Bluetooth speaker. However, it works fine with the Bluetooth in my car, and sees my laptop computer. I've no idea why this is. Any ideas ?