"The connection to the Exchange server is unavailable..." Message

[GeorgeTuk]

Hi guys,

When trying to perform a few different tasks on OWA, our users get the message "The connection to the Exchange server is unavailable. Outlook must be online or connected to perform this action"

It's very strange as it seems to be getting worse but cannot track down an issue that seems to be related.

Any help most appreciated as we have quite a few users on OWA.

Thanks

George

 

[alfa2008]

Try to connect to OWA using user@domain.com, as a username.

 

[Zelandakh]

You are getting an Outlook error in OWA?

 

[GeorgeTuk]

No the error only comes when using the website in Outlook, Outlook Anywhere.

Tried restarting IIS and that didn't do anything.