I am developing an app that uses google's turn based multiplayer API. I have two devices that I am using to test on. The first phone, which uses the developer gmail, can sign into the multiplayer just fine. The second one, whether I install the app directly from the computer or I install the signed apk with the release keystore, gets this error every time I try to sign in with it:
Failed to sign in. Please check your network connection and try again.
The second phone uses a gmail account that is set as a testing account for the app in the developer console. I am not positive what the issue is here. And yes, I have made sure that there is not an actual network issue as I am able access the internet just fine.
I appreciate any help. Thanks.
After troubleshooting for a while I realized that my issue was that my SHA1 fingerprint for my signed apk and the SHA1 fingerprint for the project that I had setup in my google developer console were different. To fix this I just unlinked the application from my game and relinked it using the correct SHA1 fingerprint.