EV Domino Gateway: Search feature does not work

Hi,

I'm performing an new installation of EV 10.0.2 w/ Lotus Domino archiving, but the search feature through a web browser does not work in any way.

Always returns with "Invalid Credentials" error.

The hard part is trying to isolate the problem: I don't know if it is a IIS, Domino or EV problem.

Whenever I do an attempt, the following error appears at EVDG - Domino Console:

[0F30:000A-13D4] 13/03/2013 11:37:03   HTTP Web Server: Function Not Implemented Exception [/ev/evdomino.nsf?login] Anonymous

Any idea about the first thing to check?

Thanks.