I have a simular situation but here with a 60KS7000. When I connect the Soundbar to a 49Q7F Qled ARC works.
With the 60KS7000 I can select HWK950 over HDMI, I can change the volume and see a Soundbar icon on my TV. Soundbar LED says Vol+/Vol- but no sound at all
I was just traveling for the week. While I was gone the power went out. When I got home the sound system was connected to the TV (Samsung UM8000F) via Wifi only. No HDMI ARC available. I tried resetting the sound system, changing HDMI cables, turning off, then turning on the Anynet+ settings, unplugging the sound system completely, waiting 5 minutes, etc. The final solution ended up being to unplug the TV itself and the sound system (probably only needed to unplug the TV) and let it sit for 5 minutes. I plugged everything back in and turned it on. Instant HDMI ARC connection upon power up. All is now right in the world.
I don't know if the power outage screwed with the TV or if something updated and threw it off, but the solution to unplug everything, let is sit a few minutes and power it back on worked for me as well.
It seemed to be TV related, not directly related to the sound system itself.
Hi, exactly the same problem here, bought a Samsung MU8000 with Soundbar HW-K950 and from the beginning no ARC sound through soundbar. Solution fot me:
-put on Anynet+ via tv menu
-put on Anynet+ on soundbar by pressing right menu button on rc soundbar for about 10secs
-unplug oneconnectbox tv for 10 mins
-unplug powercord tv & soundbar for 10 mins
when reconnecting everything ARC worked for the first time, it never worked from purchasemoment.
-check for firmwareupdate soundbar with multiroomapp samsung; i’ve latest.
I have the same problem
TV: Samsung q8 (75)
With the hw-k950cconnected with HDMI to
TV arc, worked for about 2 minutes then switched to D.IN can't get it back.
Both TV and soundbar have the current firmware.
Losing my mind.
Thank you very much for your tip. It worked fine for me too. My Samsung TV stop recognizing the HW-K950 after one week unplugged. When I restart the TV and the soundbar, the soundbar didn't appear in the TV list of speakers and the sound didn't power on withe the TV. So I let the TV unplugged from AV power one night and the morning when I replugged it, the sound bar appeared well in the list of speakers.
So, your solution was good. Thank you again.
This totally worked for me.....My TV is above my fireplace with the Samsung soundbar on the mantle so no easy task to get up there and disconnect all the cables.....all the power however is fed down to the basement so I just go downstairs and pull one plug and it dusconnects everything (Samsung TV, DVR, HW-K950).....so unplugged, let sit for 10 min and replugged all back in.....poof, TV Arc option fired right backup.