SharePoint drag and drop file to the document library is not working

[shivausk]

we/users are unable to upload files from my local machine to the SharePoint document library using drag and drop method.

Getting an error as " Sorry, for some reason this document couldn't upload. Try again later or contact your administrator" 

Please help me on this.

[#2]

@shivausk 

Some additional information here would be appreciated, namely: -

• What file type are you trying to upload?
• What browser are you using?
• What version of SharePoint?

Thanks
Steven

[#3]

@Steven Andrews 

Hi Steven, Thanks for the reply, 

PFB answers,

• What file type are you trying to upload? - Any file
• What browser are you using? - All browsers ( IE 10,11 & Chrome & FireFox) 
• What version of SharePoint? - SharePoint 2013
• Note :  Within server able to drag drop the file but over internet issue facing.