When using the K650 sound bar and two R1 Wireless speakers in surround sound mode over wifi with the latest firmware, The quailty of the sound K650 drops, sounds very muddy. As soon as you use the sound bar on it own, the sound bar improves. this is happening for a quite a few users.
can you help.
Make sure they are all on 5ghz.
I get the same issues if mine are all on 2.4ghz or mixed across the two.
Also try a reboot of the router.
What router/modem are you using?
I have bt home hub and have to have it on mode 2 for it to work with no issues