Arc ultra from US cannot paired with ERA300s from Japan ?

As I understand it the speakers are the same worldwide, except for the power cords,

First thing to do is try to recover from any glitch the update caused.

Power down all Sonos. Reboot the router and Controller. Power up the Sonos.

Hi ​@SamTPE 

I recently came across this issue myself, having a pre-production soundbar from the US and other speakers destined for the EU.

I recommend you get in touch with our technical support team - the speakers will not pair with each other, but I think there may be options for you nonetheless.

I hope this helps.

Edit: well, my speakers did not pair, but I was not in Japan. If you’re happy using it that way, then great.

I’d like to correct my experience and say it’s still not stable and need support to fix it. US arc ultra can’t be matched with Japan Era300.

What did Sonos Support say?

The only difference between US and other parts of the world would be WiFi channels. I seem to remember the US does not use channel 11 or such. This should not be a problem if speakers are set up for the right country, unless their first set up hard codes the WiFi part of the settings when setting up a speaker.

Hi ​@SamTPE 

Speakers cannot be converted from one region to another - I suspect you will need to replace whichever speakers do not match your region. I recommend you get in touch with our technical support team to progress.

I hope this helps.