Unable to upload file size >1GB

I am unable to upload files of size greater than 1GB.
There are no logs generated in the console at the time of failure. Server closes the connection unexpectedly.

Please can someone assist me on this.

See the discussion at File upload blocks memory regardless of UploadHandler

The reader’s digest version is that this is, in general terms, not a good thing to try and do directly. The safest way to handle this is with some JavaScript in the browser to upload the file in chunks.