Sometimes people have problems connecting to the server (pc where the Digiwaiter server runs) by hostname.

You could try one of these articles:

http://www.pocketpcmag.com/forum/post.asp?method=Reply&TOPIC_ID=24918&FORUM_ID=14

http://www.tutorials-se.com/wireless/iPaq-problem/

We are currently trying to create an options which makes it possible to enter the IP address of the server as well as the hostname, the PDA client should try both.