Samsung Soundbar and Subwoofer Won’t Link — How to Fix + Tips and Tricks

Your Samsung soundbar subwoofer won’t link because of various reasons. The subwoofer and the soundbar need to be synced perfectly to produce high-quality front and bass sounds for your listening pleasure.

But, if at some point it doesn’t work, there may be interference or something wrong with the connection.

Our audio experts will teach you some tricks on how to manage the situation. 

Check These First

When you discover that sound is not coming from the subwoofer, try any of these solutions below before any other.

Subwoofer Power

First, check if the subwoofer is powered on after plugging the power cord into the wall outlet. If it isn’t, check if the cord is plugged in correctly. Sometimes, the reason the sub won’t turn on might be that there’s a loose connection between the cord and the outlet.  

Unplug the sub’s cord and plug it in. Make sure it’s fitted in.

Firmware Version

The firmware version of the soundbar might be out of date, and that might be the reason your soundbar and subwoofer won’t link. You can check the firmware version of the soundbar using the remote control.

Samsung HW-A650 home theater setup

To do this, ensure that your sub is turned off. After that, press the gear-like button on the remote control once. Now, press and hold the button for approximately 30 seconds and wait for some numbers to display. 

The numbers that follow after “B” signify the firmware version of the soundbar. You can update the version by downloading the file via the USB port or using the SmartThings app.

Speaker Test

Speakers tests are only available for 2020 soundbar models and later, so if you are using an older model.

While running a speaker test, ensure that the subwoofer remains off. Then, locate the right button on the big circular control at the center of the remote. Press and hold it for more than ten seconds.

Range of Soundbar and Subwoofer

The range could also be the reason your soundbar and sub aren’t connecting. The maximum wireless range between two devices is 33 feet, and if it exceeds that, there might be an interference in the connection.

Samsung HW-KM36 subwoofer

Additionally, if there’s a barrier between the soundbar and the sub, it might foil the connection. Furthermore, if the soundbar uses the same wireless frequency as a device nearby, it might interfere with the connection. So, you must make sure that the soundbar and subwoofer are within range with insignificant or no barrier [1].

Resetting the Connection of Subwoofer and Soundbar

Next is to reset the connection of the subwoofer and the soundbar manually. Follow the steps below;

Plug-in Both Devices

Plug in the power cords of both devices into a power outlet. Ensure that they are plugged in properly and that the outlet has power. 

Press the ID Set Button

Press the ID Set button on the sub’s back. The button might be tiny for your fingers, so our technical team advises that you press it using a tiny pointed object.

Confirm Connection with the Blue LED Blinking

Keep holding the ID Set button until you see a rapid blue LED blinking. Turn on the soundbar and wait for the connection. Once the blue LED remains steady, it means that the sub and soundbar are now connected. 

Samsung HW-A650

Other Solutions

If the subwoofer and the soundbar refuse to connect, try doing the following. 

Resetting Subwoofer and Soundbar Connection

Try restarting the sub and soundbar connection. Check if you missed out on any essential steps up until the final connection. 

Repair Services

If the sub and soundbar still refuse to connect even after trying out these tips and tricks, our team recommends visiting the nearest Samsung support center for assistance. 


Why won't my subwoofer connect to my soundbar?

The reason your subwoofer won’t connect to your soundbar might be that the wall outlet is faulty, so check if it has power. Another reason might be that you didn’t plug in the power cords tightly and appropriately or that one of the devices is defective.


Connecting your soundbar to your subwoofer is a relatively complicated process, yet simple if you follow the instructions carefully. Samsung soundbar subwoofer won’t link mainly because of many reasons detailed in this post. Luckily, our audio engineers have provided you with some tricks and tips to fixing your sub and soundbar failed connection.  

Have a specific budget for your subs? Well, we have the following products that can  fit your budget: 


Picture of Willie Greer
Willie Greer
Willie Greer is the founder of The Product Analyst. A cinephile, he has made it a personal quest to achieve the awesomest home theater possible. He now shares what he has learned through the years on the site, and has enlisted the help of tech-savvy colleagues in providing more insight about today’s most sought-after gadgets.