楼主可以参考一下下面的文档
Planning Guide and System Requirements for Cisco WebEx Meetings Server Release 3.0
https://www.cisco.com/c/en/us/td/docs/collaboration/CWMS/3_0/Planning_Guide/cwms_b_planning-guide-system-requirements-cwms-3-0/cwms_b_planning-guide-system-requirements-cwms-3-0_chapter_01001.html#reference_2EDA34B66D2B4EA8BA62481066BC26DAClient and Browser Requirements
JavaScript and cookies enabled
Java 6, Java 7, or Java 8 (for web browsers that support Java) enabled
Cisco WebEx plug-ins enabled for Chrome 32 and later or Firefox 27 and later
Plug-ins enabled in SafariActive X enabled and unblocked for Microsoft Internet Explorer (recommended)
Enable Protected Mode disabled for all zones, for Microsoft Internet Explorer 64-bit
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Rockyw | If it solves your problem, please mark as answer. Thanks !