IPad App not working

Thanks for your help. Should have said that to start.

OK, I'm confused. Is it the iPad that isn't connecting, or is it a PLAY:1?

And you also say the Sonos speakers are on their own network. Would you be so kind as to expand on that? Do you mean they're on SonosNet (i.e. you have one of the speakers connected to your router with an ethernet cable), or are they all connected to your wifi?

They are on SonosNet. The Play 5 is connected to the router via Ethernet cable. I have full functionality thru the apps on my iPhone and my Mac. It is the iPad app that has the connection problem. I have dumped it and downloaded it again, reconnected it without it doing more than knowing there are the two original speakers, not the third one. It won't connect to the thirds one. Also, none of the music shows as other than album art. All the albums are empty. None of the Pandora playlists work, ditto radio stations and shows. It is like a dummy app. I ran out out of ideas, before looking for help on this community.

OK, then I'd recommend that you submit two system diagnostics, and post the numbers here, for the folks at Sonos to look at. Do one from a device that sees all 3 speakers, and one from the iPad which only sees 2 speakers. Sonos might be able to see something different between the two, as I'm out of ideas.

This morning I unplugged the original Play 1 and left it unplugged for over an hour, since it was showing up as an additional problem & could not be added to the system within the iPad app. The iPhone and Mac had had no problem seeing all 3 players within their respective apps.
Checked and the iPad app was now working with the remaining original Play 5 & newer Play 1, with no further action required.
I tried to add the original Play 1 speaker back using the iPad app without success. Yesterday I had tried that with my iPhone, same result.
The iPad app itself has continued to work without the balky speaker.
My iPhone responded to the "failed" setup by adding the 3rd location without any setup required.

Please read my previous post.

IPad Sonos App diagnositics submitted #7802914. IPhone Sonos App diagnostics submitted 7802921.

It is possible to now use the iPad app to change the channel on all 3 grouped speakers, even though the iPad app only sees two of them. That is the minimum I needed back. I usually have all 3 paired up playing the same thing. Thanks for your assistance. It helped to have someone to talk to, to help me think of more things to try. I did not see how to contact Sonos as easily over the weekend. Thanks so much, AigetIam.

Well, there is still something wrong, so I'm not sure I really helped. Other contact options can be found at www.sonos.com/contact, but it is a holiday weekend here in the US, so I would imagine staffing levels are low today.