Please check your antivirus settings, to ensure that it doesn’t block this particular download, or internet downloads in general.
In case your security software blocked the download, it shall be possible to find out in report or log file. You can recover the download in your security software (most come with a ‘recover’ function), or you can change its settings (eg. to allow this particular installation file, or to change the general setting – so that next time you attempt to download from internet, your security software will ask for confirmation, instead of blocking it automatically) and attempt to download again.
It would be best to consult your security software manual for exact steps needed, or contact our helpdesk and let us know the brand and version of your security software.