OTCS REST API Upload Failed for Files Larger than 500mb

I am developing a custom program using C#, consuming OTCS REST API. The OTCS version running is 22.4 and I am usinfg REST Sharp to call the API. There are instances that when the user is uploading files greater than 500MB, I wlll not get a HTTP success message with a node ID returned. Instead, a non JSON message or a NULL message is returned.

In the trace log nothing was reflected and we were puzzled what went wrong. There were instances where a series of files between 100MB to 400 MB were successfully uploaded, but when it reaches the 500MB file the error occur.

Any tips or idea how I can overcome this issue.