The best thing to do is to install a bare fun_plug with telnet capability. If you do not know where this is, one version is available at
http://www.inreto.de/dns323/fun_plug. Just follow the instructions in the README file for the latest version.
Restart your DNS-323. Once it starts back up, do the following:
1. Login to your device using telnet. Most OS have this or you can use a free downloadable client like putty
2. You will be faced with a Linux # prompt. From here you can change the password of admin by typing:
# passwd admin
3. After changing the admin password, exit from putty and try logging in to your device via a browser'
You should be able to login using the new password
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