Outlook to Exchange 2010 strange connectivity issue

Posted on 2012-08-23
Last Modified: 2012-08-23

Having a weird issue with one network I am looking after.

All the sudden this morning the client PCs can not connect to the Exchange server.

This is a plain vanilla SBS2010 setup with Outlook 2010 / Win7 clients. 8 PCs connecting to the SBS server, local LAN, DHCP, etc - nothing fancy.

As far as I can tell the SBS / Exchange 2010 is up and running - no error reported in the logs. BPA ok (just a warning about an old network driver) - everything look pristine. ActivSync client (Iphones) are connecting fine. However both OWA and Outlook clients are failing. I'm suspecting some networking / DNS / auto-discovery issue but can really pinpoint it.

I have enabled debug logging on Outlook client and enclosed is what I get for the startup handshake. Can't really make out any obvious issue.
Question by:atak2983
    LVL 2

    Expert Comment

    "However both OWA and Outlook clients are failing." - what do you mean by that?
    Could you please give us more details?
    The same thing is happening when users are trying to access OWA externally?
    LVL 24

    Expert Comment

    1. ping the server by CAS server/ARRAY name
    2. ping
    LVL 18

    Expert Comment

    by:Sushil Sonawane
    Make sure your RPC client access service is running state.
    LVL 1

    Author Comment

    Outlook users -> login prompt - not accepted with valid creds
    OWA -> login prompt then blank page - no error reported
    autodiscover.domain.local (form my domain) does not resolve and there is no autodiscover entry in the local -internal- DNS (which I guess could be my problem, although there is an for the external clients). Just added it (i.e. for the .local domain) but doesn't seem to help.

    Also see attached log which did not make it initially :)
    LVL 2

    Accepted Solution

    If OWA is showing blank means that you do not have all the required IIS features
    Try to run :

    Add-WindowsFeature NET-Framework,RSAT-ADDS,Web-Server,Web-Basic-Auth,Web-Windows-Auth,Web-Metabase,Web-Net-Ext,Web-Lgcy-Mgmt-Console,WAS-Process-Model,RSAT-Web-Server,Web-ISAPI-Ext,Web-Digest-Auth,Web-Dyn-Compression,NET-HTTP-Activation,Web-Asp-Net,Web-Client-Auth,Web-Dir-Browsing,Web-Http-Errors,Web-Http-Logging,Web-Http-Redirect,Web-Http-Tracing,Web-ISAPI-Filter,Web-Request-Monitor,Web-Static-Content,Web-WMI,RPC-Over-HTTP-Proxy -Restart
    LVL 3

    Expert Comment

    if it was working before and if there was no obvious change then why don't you try resetting OWA and Autodiscover virtual directories. See if that helps.

    Help Link:
    LVL 1

    Author Comment

    did that (did not catch the " -Restart " - whoops)

    seems to work now. Not sure what happened though...

    Featured Post

    How your wiki can always stay up-to-date

    Quip doubles as a “living” wiki and a project management tool that evolves with your organization. As you finish projects in Quip, the work remains, easily accessible to all team members, new and old.
    - Increase transparency
    - Onboard new hires faster
    - Access from mobile/offline

    Join & Write a Comment

    Granting full access permission allows users to access mailboxes present in their database. By giving full access permission one can open and read the content of any mailbox but cannot send emails from that mailbox.
    Resolve Outlook connectivity issues after moving mailbox to new Exchange 2016 server
    In this video we show how to create an Accepted Domain in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.: First we need to log into the Exchange Admin Center. Navigate to the Mail Flow >> Ac…
    This video discusses moving either the default database or any database to a new volume.

    728 members asked questions and received personalized solutions in the past 7 days.

    Join the community of 500,000 technology professionals and ask your questions.

    Join & Ask a Question

    Need Help in Real-Time?

    Connect with top rated Experts

    16 Experts available now in Live!

    Get 1:1 Help Now