I don’t think you would. This is all done locally.
Hi all. Had to register to comment that I’m also experiencing this issue with both my V2 (software version: 644580520) and V3 (software: 2785572740) Dots. They were working fine until 2 days ago.
Hi. Try this:
http://< HA IP Address >:8300/description.xml
Mine responds fine to that. It’s all probably Amazon messing about with new and innovative “features”. Hopefully there are enough Philips Hue users complaining to Amazon about this so they can fix it quickly.
Regards,
JR
Yep the 8300 works. I was just trying Port 80 as @petro was suggesting to try.
I did contact Amazon and they gave me a canned message about contacting their tech support for help. Not sure if they’ll do anything useful since it’s a third party integration and not an off the shelf product.
I submitted a case with Amazon here: https://developer.amazon.com/support/contact-us. They also suggest to post on their forum: https://forums.developer.amazon.com/index.html.
While Amazon may have changed/broken something that makes calls to HA differently, I suspect this is an issue with any Philips Hue-compatible system. There’s a good chance Alexa can’t tell HA from a Philips hub. Perhaps a HA Dev can tell if Alexa is making a different call than before.
Interesting that both of you and @JR250 are reporting that it works with port 8300. That was first thing I tried and it failed. Then I tried port 80 which is mentioned in docs (https://www.home-assistant.io/components/emulated_hue/).
What kind of Echos you have? JR250 mentioned that he/she has Echo gen 2 and gen 3 in network. I have gen 2 Echo and gen 1 Echo dot. Maybe that is the difference? And that link I gave it states following:
# Required if there is no older Echo device (Like an Echo Dot 1 or 2) in the same network
host_ip: YOUR.HASSIO.IP.ADDRESS
listen_port: 80
But in our cases this is exactly the opposite? I have older echo and you do not? Weird…
Hello all, Amazon Support replied to my inquiry:
"…there’s nothing wrong with your device. This is something that we are currently having an issue with and you are not the only one experiencing the problem.
We appreciate your patience and understanding while we work to resolve this technical issue as quickly as possible".
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I’m in the same boat. Emulated hue stopped working some days ago.
I’m on 644580520.
Hi all,
Yesterday my Echo refused to turn off my tv saying something about a “unknow problem”. Right now it’s working again! So it seems that amazon fixed the problem.
Good to know, so, don’t update firmware!
Nope definitely not fixed for me. Still can’t find my emulated hue devices and says server is unresponsive.
There might be some confusion. Port 8300 works when running this in a browser http://Your.HA.IP:8300/api/pi/lights. Which just means that emulated hue is working. It does not work running port 80.
Just to clarify, nothing works with echo dot on either ports.
Hi, my echo dot is on 644580520 too and I’m having issue too. Is that the latest software?
I was checking amazon website and it 644580520 doesn’t seem to be the latest. Not sure though, is there anyway to get it updated to 641575220 instead??
https://www.amazon.com/gp/help/customer/display.html?nodeId=201602210
My Echos do not find anything from emulated_hue when running on port 8300 even though that url does show everything fine. And when I run emulated_hue on port 80 (listen_port: 80) Alexa finds everything I want.
I do have gen 1 Echo dot on my network and gen 2 Echo.
I have gen 1 Echo dot and it has that same software version 644580520. I think that Echos are forced to auto-update so no luck trying to avoid that software 
Most likely you are not able to downgrade software versions so we just have to wait until Amazon fixes everything.
The strange thing is, I have two echo dots of the same generation but they are on different software. The one that is working fine, I hope it won’t do a software update.
I’m also wondering if 644580520 is the latest software, why is it not listed on their website.
Really that’s interesting. Does it show up on the app as well? I remember trying this and it did not work on port 80.
I asked Amazon customer support about why the firmware was not listed on the website and try never gave me a straight answer about it. Just told me to speak to their tech support to fix the issue.
Everything works with port 80 exept Alexa answers with switches etc that “It seems that * is malfunctioning”. Previously it worked fine without any listen_port configured but couple of days ago it broke.