"download failed: read timed out" error while downloading embedded coder support package

i am trying to download embedded coder hardware support package for stm32f4. when it reaches to the download stage, it gives an error, "download failed:read timed out". i don't understand the reason for this error. plz help

[Walter Roberson]

It could be temporary. But if you have Kasperov then you will likely need to turn that off to do the download.