Problem with read write access to network drive

Having a problem with workflow, it is failing to read/write to a network drive we have. The server itself can access no problems via UNC path or IP address. We have tried logging on as the domain admin on all services and it still can’t do anything with the network drive. All of the hotfolders have failed to work and we can’t to the drive as well.

Have any of you experienced a similar issue? Need help with a solution. Thanks!

I am using the below script to map the drive I need for my Workflow service. It call it from a Startup process:

var net = new ActiveXObject("WScript.Network");
var drives = net.EnumNetworkDrives();
for(i = 0; i < drives.length; i++) {
  if(drives.Item(i).toLowerCase()=="s:"){
    net.RemoveNetworkDrive("S:");
    break;
  }
}
net.MapNetworkDrive("S:", "\\\\obj_ca\\vol1\\shared", true,"objmtl\\"+Watch.GetVariable("global.WorkflowLogin"),Watch.GetVariable("global.WorkflowPassword"));
//Watch.Log("Drive " + drives.Item(i) + " = " + drives.Item(i + 1),2);