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Hi guys, I have problems with Arc Ultra and my surround system.
I switched from Arc to Arc Ultra several days ago. From that moment, I noticed that randomly LEDs on the surround and sub blink white for a while, then it return to work good, but only surround speakers (IKEA Table lamp Gen 2). The sub gen 3, has solid orange light and not working! I can see in the app as disconnected! I have to reboot it to work again.
What I can do? Thanks!

Check all speakers and app are updated. 
 

If it’s not that, generate a diagnostics report and contact Sonos support. Don’t publish the diagnostics number here - just reference it when you call support. 


I’d be tempted to do a network refresh as well. Based on what you’re reporting, if it isn’t the above, it might be a duplicate IP address issue. Unplug all Sonos devices from power, then reboot your router. Wait a couple of minutes, then plug back in your Sonos devices. 


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