Duet-KISS curl

F:\3D_Printer\Kiss_1.6.3>curl -v -F "file=@"F:\3D_Printer\Kiss_1.6.3\EV2\Preload\KS_Wizard.gcode"" http://192.168.0.25/rr_upload?name=gcodes/@"F:\3D_Printer\Kiss_1.6.3\EV2\Preload\KS_Wizard.gcode"
*   Trying 192.168.0.25...
* TCP_NODELAY set
* Connected to 192.168.0.25 (192.168.0.25) port 80 (#0)
> POST /rr_upload?name=gcodes/@F:\3D_Printer\Kiss_1.6.3\EV2\Preload\KS_Wizard.gcode HTTP/1.1
> Host: 192.168.0.25
> User-Agent: curl/7.55.1
> Accept: */*
> Content-Length: 477021
> Expect: 100-continue
> Content-Type: multipart/form-data; boundary=------------------------2dc709799e1c8855
>
< HTTP/1.1 500 could not create file
< Connection: close
< Access-Control-Allow-Origin: *
<
<html>
<head>
</head>
<body>
<p style="font-size: 16pt; text-align: center; margin-top:50px">Your Duet rejected the HTTP request: could not create file</p>
</body>
* Closing connection 0

F:\3D_Printer\Kiss_1.6.3>REM curl  -v -F "file=@"F:\3D_Printer\Kiss_1.6.3\EV2\Preload\KS_Wizard.gcode"" "http://192.168.0.29/rr_upload?name=gcodes/"F:\3D_Printer\Kiss_1.6.3\EV2\Preload\KS_Wizard.gcode""

F:\3D_Printer\Kiss_1.6.3>curl "http://192.168.0.25/rr_disconnect"
{"err":0}
F:\3D_Printer\Kiss_1.6.3>PAUSE
Press any key to continue . . .