>09:48:06 Error: "Bad Gateway" (502) after 2 retries at 
>link www.egac.nl/robots.txt (from primary/primary)
>I have filled in the proxyname, proxyport, username and 
>password. Also I've tried domain\username.

Humm, I suspect the proxy not being able to handle basic 
authentication, and to require challenged auth with domain 
auth, something that is not yet supported (but on the TODO 
list anyway)