We have observed something strange in our Apple Push Notification Service (development) powered by PushSharp framework.
This was working fine and all of sudden it's stopped working but the production environment working well.
We tried to decode the error messages, checked the certificates, app signing certificates etc. After spending so much of time in developer forums, JabR chat room for PushSharp, noticed a new pull request https://github.com/Redth/PushSharp/pull/369 from one of the developers claiming Apple Server has changed the security protocol to TLS from SSL3. The pull request is working fine and our development environment started working again.
This is quite strange and frustrating and in my understanding the registered developers are not notified with this change? Have you faced same problem?