ASP.NET网站本机发布好本地IP浏览没问题，为什么在IE浏览报错
Server Error in '/11/qrgc ' Application. 
-------------------------------------------- 

Runtime Error  
Description: An application error occurred on the server. The current custom error settings for this application prevent the details of the application error from being viewed remotely (for security reasons). It could, however, be viewed by browsers running on the local server machine.  

Details: To enable the details of this specific error message to be viewable on remote machines, please create a <customErrors> tag within a "web.config " configuration file located in the root directory of the current web application. This <customErrors> tag should then have its "mode " attribute set to "Off ". 


<!-- Web.Config Configuration File --> 

<configuration> 
  <system.web> 
  <customErrors mode= "Off "/> 
  </system.web> 
</configuration> 
  

Notes: The current error page you are seeing can be replaced by a custom error page by modifying the "defaultRedirect " attribute of the application 's <customErrors> configuration tag to point to a custom error page URL. 


<!-- Web.Config Configuration File --> 

<configuration> 
  <system.web> 
  <customErrors mode= "RemoteOnly " defaultRedirect= "mycustompage.htm "/> 
  </system.web> 
</configuration> 


------解决方案--------------------
IIS版本设置一下

选择控制面版－－IIS－－选择网站名称－－右击属性－－ASP.NET查看版本是否是2.0。

选择你的版本

如果还不行 重新部署一下。