Facing the same issue since 2-3 weeks. Did anyone find any solution to this. Issue looks to be specific to XCode 12. Tried upload through XCode 11, seems to be working fine there. See it failing in SSL handshaking. SslHandshakeError.log - https://developer.apple.com/forums/content/attachment/c554f2d6-d1a7-4768-9994-cbfbf80e8da3

Has anyone been able to solve this please let me know we are stuck on this since two months now. On further debugging I have found the issue most likely is because of our network defaulting to TLS v1.3 and not falling back on TLS v1.2. DEBUG [2021-06-30 18:15:56.51]: [Transporter]: DEBUG: DataCenter: contentdelivery02.itunes.apple.com DEBUG [2021-06-30 18:15:57.31]: [Transporter]: DEBUG: javax.net.ssl.SSLHandshakeException: Remote host terminated the handshake For other jar downloads on the machine in the same network we are able to solve it by setting this variable export _JAVA_OPTIONS=-Dhttps.protocols=TLSv1.3,TLSv1.2,TLSv1.1,TLSv1 in the bash profile Noticed the current version used by iTMSTransporter is Mac OS X 11.1 (x86_64); jvm=14.0.2+12-iTunesOpenJDK-5; jre=14.0.2+12-iTunesOpenJDK-5 If any one has any idea how we can set the _JAVA_OPTIONS for iTMSTransporter during upload please let us know.