EAS8.2用外网登入客户端报错

EAS8.2用外网登入客户端报错
telnet 外网IP地址 11034 和6888端口都是通的
但是登入客户端时还是报错

请联系技术支持人员，检查http://外网IP[u]:6888/[/u]/easupdater/eas.jnlp?autoDownload=true
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com.kingdee.eas.client.startup.exception.EASClientException: 文件列表为空，可能是更新功能的服务端问题，请检查http://外网IP:6888/easupdater/eas.jnlp?autoDownload=true
at com.kingdee.eas.client.startup.update.check.CacheStateImpl.compare(CacheStateImpl.java:192)
at com.kingdee.eas.client.startup.update.check.CacheStateImpl.(CacheStateImpl.java:70)
at com.kingdee.eas.client.startup.update.check.CacheStateFactory.createRawCacheState(CacheStateFactory.java:66)
at com.kingdee.eas.client.startup.update.check.CacheStateFactory.createCurrentCacheState(CacheStateFactory.java:23)
at com.kingdee.eas.client.startup.update.EasClientExplicitUpdater.(EasClientExplicitUpdater.java:41)
at com.kingdee.eas.client.startup.update.EasClientExplicitUpdater.getInstance(EasClientExplicitUpdater.java:37)
at com.kingdee.eas.client.startup.ClientUpdater.update(ClientUpdater.java:44)
at com.kingdee.eas.client.startup.EASClientStarter.update(EASClientStarter.java:58)
at com.kingdee.eas.tools.bodyguard.BodyguardDlg.checkAndUpdate(BodyguardDlg.java:279)
at com.kingdee.eas.tools.bodyguard.BodyguardDlg.newTask(BodyguardDlg.java:132)
at com.kingdee.eas.tools.bodyguard.BodyguardDlg.doTask(BodyguardDlg.java:78)
at com.kingdee.eas.tools.bodyguard.extcomponent.FrmRunTask$3.run(FrmRunTask.java:234)
at foxtrot.AbstractWorkerThread$1.run(AbstractWorkerThread.java:39)
at java.security.AccessController.doPrivileged(Native Method)
at foxtrot.AbstractWorkerThread.runTask(AbstractWorkerThread.java:35)
at foxtrot.workers.SingleWorkerThread.run(SingleWorkerThread.java:196)
at foxtrot.workers.SingleWorkerThread.run(SingleWorkerThread.java:179)
at java.lang.Thread.run(Thread.java:662)