Swisscom PLC device password Asoka PL7667-ETH

I have been looking to configure Swisscom's PLC / HomePlug AV device (Asoka PL7667-ETH) for quite some time now, but I couldn't find any manual mentioning the password of the web interface.

Here it is:

Username: admin
Password: welcome

(found in this document)

You might want to use the interface to:

• switch the attached device on and off, thus reducing the electrical bill (I'll probably write a script for that ;-))
• change the IP address and other settings