Sonos Beam cutting out on Samsung TV

  • 6 September 2020
  • 4 replies

Connected via HDMI ARC. Sound works for awhile then cuts out. Then have to turn off the CEC connection so that sound comes through TV speakers.  Sounds like many others have had same issue.


Samsung Model QN75Q6FN 75" Smart QLED 4K Ultra HD TV with HDR


Diagnostic: 173777653

4 replies

I’ve spent nine hours trying to fix the same issue. Did you figure it out? I’m about to head to Costco to trade the Samsung in for an LG! 

Not yet, hoping they can help me fix.  This has happened in the past, then it stopped and was working fine, but now it’s back.  I don’t think this is a Samsung issue, but a Sonos one.

Except that my other TV, an LG doesn’t have the problem. Same set up. There are a ton of other posts re ARC not working with Samsung. Really weird! 

Userlevel 4
Badge +11

Hi @MadZiser.

Welcome, thank you for reaching out to Sonos Community.

I notice in your diagnostic report the wifi channel you're using is overlapping.

Here are router settings that need to be verified. You can contact your ISP or the manufacturer of the router for assistance.

a. Auto channel must be set to Off.

b. Choose best non-overlapping channel (1,6,11)

c. Set channel bandwidth to 20MHz

d. Both 2.4GHz and 5GHz should be enabled

e. 802.11 band should be set to b/g/n

f. Airtime Fairness should be disabled

Let us know if it works. If you need help with any other information, please be sure to let us know.