This may occur if you are using a proxy server.
As a workaround, select [Tool] from the menu bar of Internet Explorer - [Internet options] - [Connections] - [LAN settings] - [Advanced], and register the IP address of the camera in [Exceptions], and try again.
In some cases, access to the camera is not possible when [Automatic Configuration] is selected.
In this case, set the proxy server manually without using automatic configuration.
Contact the network administration for the information on proxy server settings.
