Entourage not connect to exchange 2007 after sp1 update

[STEADY]

I am getting this on the setup
Verifying Exchange account "(e-mail address removed)" on "https://
mail.wirthware.net":
Verification Failed: "HTTP error. The server cannot fulfill the
request." (-18500 )

Some of your account settings are incorrect. Click the left arrow and
verify the items highlighted in red. To complete setup without
verifying your account settings, click the right arrow.

I can log into OWA, I have Webdav enabled.. what else can I check.. to
resolve this issue. it work before we did the upgrade from RTM to SP1

 

[Corentin Cras-Méneur]

Verification Failed: "HTTP error. The server cannot fulfill the
request." (-18500 )

You have to make sure that the server is fully up to date. I believe it
has been corrected in a patch for Exchange,

Corentin