I have a Shield TV and a Nexus Player. As of a month or two ago I can't connect to either using the remote app on my 6P.
Both show up under the manage connections menu but as soon as I select one it says connecting for a second then goes back to the manage connections screen. I tried downgrading to different versions of the remote app but they're all having the same issue.
Anybody else experiencing this?
UPDATE: Here's the fix
Settings > apps > Android TV Remote service (system app) > clear data > reboot
Then clear the app data from the remote app on your phone, and try to connect again.
This has been happening to me for weeks (months?) with a Galaxy S7 and Shield TV.