Installing and troubleshooting Duet Request Handler setup

Installing and troubleshooting Duet Request Handler setup

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Some of our duet customers are facing problem while installing Duet Request Handler. So I thought of writing the installation procedure to help them out.

Here is the first screen that come up when you run the Setup file and Click Next


Duet request Handler setup

In the designated account text box you have to enter the user name in the form of domain\user. This domain account will be used to send the mail messages from the exchange server.

Enter the domain user's password in the Password text box and the name of the exchange server in the Exchange server text box.

Note : If your exchange server is serving webdav at some other port than 80 please specify port number with the exchange server. Exchange server name should be exactly the same where your mailbox is residing.

e.g.

Exchange Server:
exchangerServer:8081

Setup validates the domain account in the active directory and attempts to send webdav request to the exchange server. If any of these steps fails it will not allow the user to continue.

You can specify the Port number where you want request handler to be running in the next screen. (Note: setup only creates the virtual directory. You should create a different website yourself if you dont want the request handler to run in the default website)

duet request handler

If everything goes fine you are ready to install. Click next and you are done.

Troubleshooting: If it throws a message saying "Designated account credentials could not be authenticated" you should:

  • Make sure you entered the correct username and password.
  • Check if the user exist in the AD and exchange server.
  • Make sure machine is connected and added to the appropriate domain and you have access to the exchange server machine.
  • Make sure your are logged on to the machine using the domain credential not (local machine credentials).
  • Make sure username and password doesn't contain space characters in the start and the end.
  • Check if user has access to Global catalog (GC).
  • Check if webdav service is enabled on the exchange server. Try to access http://exchangeserver:port/exchange/user using the credential you specified in the setup screen. If you can't access it, that means you probably have some issue with exchange server configuratuin and contact your admin to configure exchange server for the necessary setup and permissions.
  • Make sure windows authentication is enabled on the exchange server.
  • Forms based authentication is not supported in this version of the request handler.

 

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  • Hi,

    Thanks for your response. We did following and the request handler installation error has still not

    resolved. We are getting same credentials error.We are trying to install DUET 1.0 SP2.

    1) Granted domain admin rights to the request handler installation user

    2) Moved the mail box of the installation user to the request handler

    exchange server instance

    3) Changed the authentication scheme to windows authentication

    4) Allowed anonymous access

    5) Enabled WebDev with ASP.NET 2.0 and activated this version for the

    excahnge server as well as the DUET server

    6) Used the domain admin user logon to complete installation

    7) Gave the Domain name/user as the user in the request handler

    installation

    Let me explain the exchange setup at my company. We have one domain for

    all exchange servers.But we have multiple instances of exchange server

    in various locations. These instances do not have SSL

    configured.However to allow web access for Outlook web access, we are

    using a front end exchange server which has form based authentication

    and has SSL configured. The form based authentication is given at the

    front end exchange server to allow user to access "customized" log in

    page rather than the standard windows authentication.

    We are trying to install Request handler in one of the backend exchange

    server instance which has windows authentication. we have enabled

    WEBDAV and ASP.NET 2.0 only on this exchange instance and not on others.Please see the attached screen shot for the error that we face while

    installation , please help ASAP .

    You can contact us on 00919900104186 or on email at

    prasanth_churukumalli@datamatics.com or give me your email address to contact

    Thanks for the help

    Regards

    Prasanth ch

  • Hi Sandeep,

    for Duet 1.5 SP1 I was unable to install the Request Handler Server Comp for a Windows2k3/Exchange 2007 SP1?

    Do you have any exp. with 1.5 SP1?

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