On devices with android 6+ my app works normally, but when I try run it on a device with Android 4.4, I got this:
javax.net.ssl.SSLHandshakeException: javax.net.ssl.SSLProtocolException: SSL handshake aborted: ssl=0x62b2fe10: Failure in SSL library, usually a protocol error
What are you connecting to? InitializeAcceptAll will help when the certificate is not signed by a recognized authority. It will not help if the encryption protocol is not supported.
I tried others settings on the server, but I found others errors, like this. As viewed in link, is it possible implement that code to specify protocol?