# Error 401 on module

**URL:** <https://forums.digi.com/t/error-401-on-module/3953>\
**Category:** Plug N' Play\
**Tags:** hardware\
**Created:** [May 5, 2006, 12:58pm UTC](https://forums.digi.com/t/error-401-on-module/3953 "2006-05-05T12:58:38Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![jojo](https://avatars.discourse-cdn.com/v4/letter/j/ecd19e/32.png) [@jojo](https://forums.digi.com/u/jojo)\
**Post date:** [May 5, 2006, 12:58pm UTC](https://forums.digi.com/t/error-401-on-module/3953/1 "2006-05-05T12:58:38Z")

</div>

Hello everybody

I have a problem to connect my applet with the digi. I send this RCI command:  
assertedassertedassertedassertedasserted

and my program but the answer of the digi is :

java.io.IOException: Server returned HTTP response code: 401 for URL: [http://192.168.10.98/UE/rci](http://192.168.10.98/UE/rci)  
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:709)  
at gpio.AppletGPIO.jbInit(AppletGPIO.java:112)  
at gpio.AppletGPIO.init(AppletGPIO.java:64)  
at com.borland.jbuilder.runtime.applet.AppletTestbed.startApplet(Unknown Source)  
at com.borland.jbuilder.runtime.applet.AppletTestbed.main(Unknown Source)

I think it’s about the username and password but i don’t know how to write it in RCI command !

I joint my applet