I've install sql server 2014 on ms 2012 R2 several times and we generally use a non-standard port without issue. I did a new instance install and when I try to change the default port on the default instance and we are unable to connect via a client. The sql server says it's listening on the port, netstat -na shows something is listening on the port, but I'm getting a tcp provider error 10061 no connection could be made. Browser is running and I've also tried a client alias with the specific port. We initially thought it was a firewall issue, I've completely dropped the firewall. The client is a 2012r2 server as well.
Also we are running wireshark and we don't see traffic on the new port, but continue to see acks on the 1433 port. Not sure if there is a subcomponent that still uses that port, but we aren't seeing any traffic on new port. I had sysadmins install telnet and I can telnet to new port so something is listening, but can't connect with ssms.