I have 4 Echo Dots. Yesterday I set up 2 in a multi-room group which worked fine. This morning, playing music on the group only played on one of them, although the other was connected and working, I tried deleting the group, re-adding the 2 to the WiFi SSID and checked they are all on the latest software, but was still having the problem, as above, that when I try to re-create the group, all 4 devices show as Available, but as soon as I selected any one of the 4, the other 3 show as Device Unreachable. Finally, rebooting the router cleared the problem!
I think there's clearly a bug here, since it shouldn't be necessary to reboot the router to resolve an issue with the client devices. There ought to be a way to get them to reset their connections properly!
For the second time in 5 days, I've had to reset a multi-room group. The Alexa app says that 2 of my 4 Echo Dots are in the Downstairs group, but will only play on one of them, even though I give the command and get the response on the other member! Rebooting the router and the Dots didn't fix it and the only solution seemed to be editing the group and re-saving it a couple of times.
Sine the Echos are connected to the network and work individually, I can't understand why Alexa has so much trouble remembering and using the groups! Hopefully, the developers have noticed this and are working on an update!
I fix the problem of one device showing as unreachable as soon the other device is selected for multiroom. I tried all the suggested fixes and the one that work for me was updating the software of my newer echo dot so both my dots were running the same software version. My new echo dot couldn't update when I asked it to but disconnecting it and reconnecting it to its power source worked. Both of my echo dots now have same software version whereas the did not previously. I hope this helps someone.
Old thread, but I found another thing causing this problem when connecting to a single network with multiple routers.
My network has two wireless routers, the main and a hardwired, secondary one for additional coverage. Originally selecting any Echo connected to one of the routers made the others not available for the same speaker group. Looking at my router settings, I saw that I had set up the secondary router to also be a main router.
After changing the secondary router to Access Point mode (this disables things such as its own additional firewall...) the Echo's could then all see each other and be added to the same group. This also fixed other problems I was having on my home network. Whoops!
Same problem. Tried everything on forums... reset router & google wifi access points, made sure sw up to date in all devices, deleted/re-added group, etc. Every time I go in to multi room music and select one device the others show unavailable. I have a show (new generation) and three dots (two new gen and one older). Occasionally I can group two together before others go 'unavailable' but can never get three or four grouped. Help!!!
I REsetup the speakers' WIFI access so that they were NOT in the "guest network setings". Guest network setting do not "Allow guests to see each other and access the local network" unless you actively heck the box that allows guests access to your home network. So when both speakers are in the "guest network" they are disallowed from working together. When I moved them out of "guest" and in to the regular network they worked just fine. Using a Netgear WNDR4300
Thanks to all you guys I sorted my problem. I had 9 echos until today, all working fine...in groups or stereo pairs as I wanted. The 10th (and final!) arrived and I plugged it in. When I attempted to make it a stereo pair, if I clicked on the latest dot first it made all the others unreachable. If I clicked on any other dot first, only the new dot was unreachable. First time I had this issue!
I checked if the two dots I wanted to pair as a stereo had up to date software simply by asking them individually. Good tipmfrommthe forum, but this didn’t solve my problem - they were both up to date.
What caught my attention was something about my router maybe having the new dot on a ‘guest network’. I am using a BT hub and whilst I couldn’t find anything in settings about guest networks, I did notice that the new dot was the only one where ‘Always use this IP address’ was set to ‘no’ so I thought...hmm...this sounds like a guest might be treated...so I changed this to yes in my hub settings on line and...presto!
Then i added the newest dot to my everywhere group first and then when I went for my stereo pairing in my dining room and now it’s reachable and...I have my last stereo pair working like the others!
Thank you forum people - your ideas got me sleuthing and I’m posting this because maybe those who are still having issues might be inspired!