Samsung HW-S800B Not Connecting to TV: What Usually Causes It?
If your Samsung HW-S800B is not connecting to TV audio, the problem is usually a setup, cable, or compatibility issue rather than a faulty soundbar.
This guide walks through the most common causes and the exact checks that restore HDMI ARC, eARC, Bluetooth, or optical connections.
The HW-S800B is a slim Samsung soundbar from the S-Series, and its low-profile design can make setup more sensitive to the TV’s audio settings than larger systems.
Understanding the connection path first will save time and prevent unnecessary resets.
Identify the Connection Type First
Before troubleshooting, confirm how the soundbar is supposed to connect.
The fix depends on whether you are using HDMI ARC, HDMI eARC, Bluetooth, or optical audio.
- HDMI ARC/eARC: Best for TV audio control, CEC support, and simplified volume syncing.
- Bluetooth: Useful for wireless playback, but not always the best for TV latency or reliability.
- Optical: A fallback option when HDMI ARC or eARC fails.
Many “not connecting” complaints are actually cases where the soundbar is connected physically but the TV is still sending audio to its internal speakers.
Check the TV’s Sound Output Settings
The most common reason the Samsung HW-S800B is not connecting to TV audio is an incorrect output setting on the television itself.
Even when cables are plugged in correctly, the TV may keep outputting sound to built-in speakers.
On Samsung TVs
- Open Settings.
- Go to Sound or Sound Output.
- Select Receiver (HDMI), HDMI ARC, or the connected soundbar name if available.
- Make sure Anynet+ (HDMI-CEC) is enabled.
On LG, Sony, TCL, Hisense, and other TVs
- Open the audio or sound menu.
- Choose External Speaker, HDMI ARC, or Bluetooth audio, depending on the connection.
- Enable the TV’s HDMI-CEC feature if you are using ARC or eARC.
If the TV menu shows both internal speakers and external output options, explicitly choose the external device.
Some sets revert to internal audio after an update or power loss.
Verify the HDMI ARC or eARC Port
When the HW-S800B is not connecting to TV through HDMI, the cable may be plugged into the wrong port.
ARC and eARC only work through specific HDMI ports labeled ARC or eARC.
- Check the TV manual or the back panel labels.
- Connect the soundbar to the TV’s designated HDMI ARC/eARC port.
- Use the soundbar’s HDMI OUT port, not HDMI IN.
- Try a different high-speed HDMI cable if the current one is old or damaged.
For best reliability, use a certified High Speed HDMI cable or Ultra High Speed HDMI cable, especially if your TV and soundbar are using eARC.
Enable HDMI-CEC Features on Both Devices
ARC and eARC often fail when HDMI-CEC is off.
Samsung labels this feature Anynet+, while other brands use names such as Simplink, Bravia Sync, EasyLink, or CEC.
Turn on HDMI-CEC on both the TV and the soundbar setup path if your model supports it.
This allows the TV to detect the soundbar, pass audio over HDMI, and control volume through the TV remote.
If CEC is already enabled, toggle it off and back on.
That simple refresh often clears handshake problems after firmware updates or a power outage.
Power Cycle the TV and Soundbar
A full power cycle resets temporary handshake errors between the TV and the Samsung HW-S800B.
This is especially helpful when the devices were connected before and suddenly stopped working.
- Turn off the TV and soundbar.
- Unplug both devices from power.
- Wait at least 60 seconds.
- Reconnect the HDMI or optical cable securely.
- Power on the TV first, then the soundbar.
This order matters because the TV usually needs to detect the soundbar during startup.
If the soundbar powers on before the TV is ready, the handshake may not complete.
Check Bluetooth Pairing and Device Memory
If you are using Bluetooth and the Samsung HW-S800B is not connecting to TV, the issue may be a stale pairing record.
Bluetooth devices can remember old pairings and refuse to reconnect cleanly.
- Remove or forget the soundbar from the TV’s Bluetooth list.
- Put the HW-S800B back into pairing mode.
- Delete other nearby Bluetooth audio devices that may interfere.
- Restart both devices before trying again.
Bluetooth can work for casual use, but TV audio through Bluetooth can introduce delay or dropouts.
If your TV supports ARC or eARC, that is usually the more stable choice.
Test the Optical Audio Option
If HDMI ARC is failing, optical audio can help determine whether the problem is with the TV, the soundbar, or the cable path.
The optical connection does not support volume control through HDMI-CEC, but it often delivers stable sound quickly.
- Connect a Toslink optical cable from the TV’s optical output to the soundbar’s optical input.
- Select Optical or Digital Output on the TV.
- Make sure the optical cable is fully seated and the protective caps are removed.
If optical works but HDMI does not, the issue is usually ARC/eARC configuration, not a broken soundbar.
Update Firmware on the TV and Soundbar
Firmware mismatches can affect HDMI handshakes, Bluetooth stability, and audio format negotiation.
Keeping both devices updated is a practical fix for persistent connection issues.
- Check the TV manufacturer’s support page or built-in update menu.
- Use the Samsung SmartThings app or the soundbar’s supported update method if available.
- Restart the devices after updating so the new firmware takes effect.
Updates are especially important after a TV OS upgrade, since new software can change how the TV handles CEC or audio passthrough.
Review Audio Format Compatibility
Some connection problems are actually audio format conflicts.
If the TV is set to output a format the soundbar cannot decode in that mode, you may get silence, distortion, or intermittent sound.
Try these adjustments in the TV audio settings:
- Set digital audio output to PCM for testing.
- If PCM works, test Auto or Bitstream afterward.
- Disable advanced audio processing features temporarily.
PCM is a good troubleshooting baseline because it reduces format complexity.
Once the system is stable, you can re-enable surround or passthrough options if your TV and source devices support them.
Inspect Cables, Ports, and Physical Setup
Loose ports, damaged cables, and difficult cable routing are common with slim soundbar installations.
Because the HW-S800B is compact, the cable may be bent tightly behind the TV stand or wall mount.
- Reconnect the HDMI cable firmly at both ends.
- Try a different HDMI cable to rule out a cable fault.
- Check for bent connectors or debris in the port.
- Make sure the TV is using the correct HDMI input for the soundbar.
If the soundbar is mounted under a wall-mounted TV, confirm that the cable is not under tension.
Even slight movement can interrupt ARC communication.
Reset the Soundbar Only If Needed
If basic checks fail, a soundbar reset may help clear corrupted settings.
Use this only after confirming cables and TV settings, since a reset will remove customized preferences.
Follow the reset instructions from Samsung for your specific HW-S800B firmware version or user manual.
After the reset, repeat the setup from the beginning, starting with the physical connection and then the TV audio output selection.
When the Samsung HW-S800B Still Won’t Connect
If the Samsung HW-S800B not connecting to TV problem continues after all checks, the issue may be caused by an incompatible HDMI port, a TV software bug, or a hardware fault in the port itself.
Testing the soundbar with a second TV, or testing the TV with another ARC device, can isolate which component is at fault.
At that point, gather the TV model number, soundbar serial number, cable type, and a brief description of the symptoms before contacting Samsung support or the TV manufacturer.
Clear details make it easier to identify whether the problem is with HDMI-CEC, ARC negotiation, Bluetooth pairing, or a defective port.