Remedy JAVA API 登录不了的解决办法

这是登录Remedy的代码

public void connect() {
// System.out.println("Connecting to AR Server...");
                userInfo = new ARServerUser();
                userInfo.setServer("192.168.253.221");
                userInfo.setUser(new AccessNameID("user"));
                userInfo.setPassword(new AccessNameID("passwd"));
                try {
                        userInfo.verifyUser(new VerifyUserCriteria());
                } catch (ARException e) {
                        // This exception is triggered by a bad server, password or,
                        // if guest access is turned off, by an unknown username.
                        System.out.println("Error verifying user: " + e);
                        // Clear memory used by our user context object
                        userInfo.clear();
                        System.exit(1);
                }
// System.out.println("Connected to AR Server.");
        }


登录开发环境的remedy没有问题，可是换到生产环境就登录不了，报错：

Error verifying user:
MessageType: 2
MessageNum: 90
MessageText: Cannot open catalog; Message number = 90
AppendedText: 192.168.253.221 : RPC: Rpcbind failure - RPC: Timed out

不知道为何，只知道解决方法很简单，加上一个环境变量就好了，他表示remedy的端口是2020.

export ARTCPPORT=2020