Subscribe To Topics Suddenly Throws "java.io.ioexception: Internalservererror"

since today I encountered the following issue with GCM 'subscribe to topics'. Nexus 6, Android 6.0.1, Google Play Services 9.0.83 Using google-play-services:8.3.0 in app. Step 1 I

Solution 1:

I am part of the Google Cloud Messaging team.

We identified an issue in our backed that affected a small percentage of the topic subscriptions during the last 24 hours. The issue has already been fixed, and the subscriptions should work correctly on all devices.

Please let us know if you are still experiencing this error.

Thanks Steffen for reporting the issue.