According the official documentation about Internet Explorer 10 and 11, this versions of the Windows default browser support by default the WebSocket objects. However sometimes it could present some problems, mostly with the maximum number of concurrent WebSocket connections which per default is limited to 6.
The solution founded to solve this problem is using the Local Group Policy Editor. The Local Group Policy Editor is a Microsoft Management Console (MMC) snap-in that provides a single user interface through which all the Computer Configuration and User Configuration settings of Local Group Policy objects can be managed for your computer. However there is limitations to use this editor which are:
To open the Local Group Policy Editor and configure the WebSocket object for Internet Explorer follow this steps:
For more information about the Group Policy Settings for Internet Explorer go to http://technet.microsoft.com/en-us/library/jj891001.aspx
If you can´t access the Local Group Policy Editor, this documentation from Microsoft might help: http://msdn.microsoft.com/en-us/library/ie/ee330736(v=vs.85).aspx#websocket
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