Project Pro connection to Project Server 2007

Posted on 2009-02-13
Last Modified: 2013-11-15
Project Server 2007 on MOSS 2007 Server
Project Pro 2007, Outlook 2007

Users need to open projects from the Project server from Project Pro 2007. Upon selecting the server profile on the Project Pro login screen, they receive the following error:
"Login Failed. Project could not connect to server
Please check your username and password and try again."

However, once the user has opened the PWA site from a browser, Project Pro opens the server profile immediately.

A similar problem occurs in Outlook with the Project 2007 Add-In for Outlook.  When a user has not yet opened the PWA website, their attempt to import new assignments gives them the following error:
"Your credentials were not accepted by the server.  Contact your administrator to ensure you have permission to access the server."

-These are impacting all users of PWA at all levels of security/access.
-We are using NTLM authentication for SharePoint/Project.
-We have tried both http:// and https:// URL within Project and Outlook.  The same errors occur on both.
-The PWA site is added as a local Intranet site in IE, and we've tried it in Trusted Sites

Thanks for any help!
Question by:Timsy321
    LVL 13

    Expert Comment

    Do you use a proxy? If the proxy requires authentication, that would explain this problem: Project Pro can't connect until the Proxy server allows your connections through. This may be done when you start IE.

    Talk to your network folks, or take a look at your IE settings: Tools->Internet Options->Connections tab: Maybe checking "Bypass Proxy server for local addresses" will help.

    (Project Pro uses these same settings, it essentially uses IE to create it's http connection to the server.)

    Unusual problem, and either caused by your network configuration or some unique software configuration on your workstations.

    Author Comment

    Thanks for the reply, jb -
    We do not use any proxy on our network.
    I'm leaning towards this being a configuration problem with either IIS or alternate access mapping, but have no evidence (and limited knowledge of both) to support that.  Connectivity to SharePoint and Project PWA has never been a problem, but something is obviously different when using Outlook or Project vs IE.  Any thoughts or best practice/documentation for either IIS or AAM when using Project Server?

    Accepted Solution

    This issue has been resolved after working with Microsoft to verify all correct Web App, SSP, PWA, and IIS settings.
    I believe the piece that was not configured correctly was IIS.  The SharePoint/Project setup we have is only meant for internal use (all users have AD accounts).  However, anonymous access on IIS was allowed.  Anonymous was not configured on the SharePoint server, so the conflicting settings there seemed to be the kicker.
    Hopefully this will someday help another poor soul struggling with the same issue.

    Author Comment

    My last post has the solution.

    Expert Comment

    I have same problem could you please tell how you solve it, thanks.

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