How to upload file in external ip address vbscript

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ASP

VBScript

File-Upload

FTP

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I'm using vbscript in asp classic. I also used the FreeASPUpload class.. I want to upload file not in local, but to a server using its IP address as path..

Here is the code working if i will upload in local..

Dim uploadsDirVar
uploadsDirVar = Server.MapPath("../temp/")

Set Upload = New FreeASPUpload
Upload.Save(uploadsDirVar)

But i want to upload it in a path with an ip address.. Below are the codes I tried but its resulting in HTTP 500 Internal Server Error..

Dim uploadsDirVar
uploadsDirVar = "\\123.45.6.789\DocFolder\"

Set Upload = New FreeASPUpload
Upload.Save(uploadsDirVar)

I already mapped the folder \123.45.6.789\DocFolder\ in my local because of the login. I also tried codes with credentials but still same error.. See below:

Dim ServerShare 
Dim UserName 
Dim Password 
Dim NetworkObject 
Dim FSO

ServerShare = "\\123.45.6.789\DocFolder\"
UserName = "domain\username"
Password = "password"

Set NetworkObject = CreateObject("WScript.Network")
Set FSO = CreateObject("Scripting.FileSystemObject")

NetworkObject.MapNetworkDrive "", ServerShare, False, UserName, Password

Dim uploadsDirVar
uploadsDirVar = "\\123.45.6.789\DocFolder\"

Set Upload = New FreeASPUpload
Upload.Save(uploadsDirVar)

Still same result.. Can anyone help? I'm new in asp classic and vbscript especially in uploading of files and also its behavior. thanks