Hi @MiniEmma
Welcome back to the Sonos Community!
Sorry to hear of this issue that you are having with your remote not working with your Playbar.
From researching, I think I just need to get the remote to use IR.
I've even tried adding it in the Sonos S1 app but it doesn't recognise any button presses.
Yes - this is exactly what you need to do. The remote must be transmitting IR for it to work with your Playbar, and you will need to program the Playbar to accept the remote.
Please try Remote Setup in the Playbar’s room settings again, but press each button 3 times - if it still does not detect it, ensure the remote is using IR.
If this still does not work, I recommend you get in touch with our technical support team who have tools at their disposal that will allow them to give you advice specific to your Sonos system and what it reports.
I hope this helps.
Thanks @Corry P
The trouble is I can't even get to the bit in the S1 app where it asks you to press it 3 times.
I think this is a Samsung problem mixed with me adding the optical to hdmi converter.
When the Playbar is plugged in with optical directly then the Samsung One SolarCell remote is happy to change the volume even without me adding it in the S1 app but as soon as I plug it into the HDMI eARC it just stops working.
I use the skyq remote with my playbar...
I use the skyq remote with my playbar...
Yeah that's what I have always done up until now and it still works with this configuration too
as does the boring/standard Samsung remote but I would like to use the TV apps more instead of the Sky box so like to have a Samung remote handy and it would be nice all the functions on it worked. Just feels odd using the Sky Q remote when I'm not using Sky
It's not the end of the world, I just like things to work 
Hi @MiniEmma
This is strange - the Playbar has no way of telling what it is plugged in to, and it should make no difference anyway.
I can only recommend you get in touch with our technical support team who have tools at their disposal that will allow them to give you advice specific to your Sonos system and what it reports.
You may, however, find the following pages useful:
Use a Samsung One Remote with Sonos home theater speakers.
Control Sonos home theater with your TV remote
I hope this helps.
I have same problem with lg tv remote, it works when tv off for volume, but turn tv on and it becomes a magic remote and stops using IR (took me ages to discover that one), so i have both to hand…..
I have same problem with lg tv remote, it works when tv off for volume, but turn tv on and it becomes a magic remote and stops using IR (took me ages to discover that one), so i have both to hand…..
Yes, I think that's exactly the issue, the Samsung remote stops using IR as soon as I plug in the HDMI converter. I've seen replies on other forums suggesting adding a pretend old version sky box that uses IR in the connected devices menu but I can't get that to work either.
I'll give tech support a try at both Sonos and Samsung but I like to get community views and hopefully if we get a resolution I can update it here for everyone who needs it.
I'm part of the way there thanks to this Reddit thread:
https://www.reddit.com/r/TheFrame/s/HTCIKE0Dqf
And specially this reply:
"I have the same problem.
I found a temporary solution to switch the remote to the IR mode.
1. Put the remote to the pairing mode by holding down the return and pause button
2. Go to the Bluetooth settings on your smartphone (I have tried with iPhone only)
3. Connect to the "Smart Control 2016" and press "pair"
The smartphone should remember your remote and switch the remote to the IR mode.
It could take several attempts for iPhone to find the remote.
Hope this will help."
Followed by this reply:
"Thanks! This worked for me after I added a final step of “Forget This Device” after successfully pairing to Smart Control 2016."
At this point I could see the IR working on the Solarcell One Remote by looking at the end with my phone camera but it still wasn't controlling the volume on the TV so I went ahead and used the Sonos app to add the remote and it worked!! BUT now my other remotes (standard Samsung and Sky Q) don't work the volume any more.
So, nearly there but maybe worse off 