On Android 5.x, initially, we encountered the following error
javax.net.ssl.SSLPeerUnverifiedException: No peer certificate
This issue got resolved by enabling all ciphers thru Policy manager but now the SSL handshake between Android client and SSG in taking very long. In terms of mobile apps, the response time is acceptable in Android 4.1.2 to Android 4.4.2 but the same app when installed on Android 5.x, takes a very long time in just the SSL handshake.
The version of Secure span gateway is 8.2.