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Hello GP Community,
This article compiles the solutions to common problems relating to Web Client, I have broken down the errors based on type of error.
I have also included:
401.1 Access Denied on Web Management Console
401.2: Unauthorized: Access Denied due to Invalid Credentials
HTTP Error 500.19
HTTP Error 503. The service is unavailable.
This indicates an issue with the App Pools, the identity used by the App Pools does not have correct permissions or an issue with the URL Reservation.
Cause 1: The App Pools for Web Client are not running.
Resolution 1: Use the following steps to check.
Cause 2: The identity used by the application pools does not have sufficient rights.
Resolution 2: The account that is used for the AppPool in IIS needs to have "Logon as a Batch Job” and “Log on Locally" rights or be a member of the Local Administrators Group.
Cause 3: Extra URL Reservation added to IIS Server.
Resolution 3: Use the following steps.
End Point not found or There was no endpoint listening
Web Client user can login, but errors are showing up in SQL error log
The Runtime Service uses the FQDN if it is a self-signed certificate or one created in CA. If using a third-party certificate, you could potentially have it setup.
The fact that your users can login to Web Client but get prompted for the GP login window means that Identity Management is not setup correctly. The 3 parts of this setup is:
If this is all setup correctly, then yes, when the user logs onto Web Client using their Windows account, it should see they are tied to a GP login and log them into the GP application automatically as that user, only seeing a company selection window if they have access to more than one GP company.
I'd verify the above 3 settings again, as most likely they are not correct. I'd also recommend not copying/pasting user ids and passwords as well, as I've seen that not always work.
When attempting to log into Web Client: A problem occurred creating a session. Please try again later or contact your administrator.
"The username and password supplied are not valid credentials for using Microsoft Dynamics GP. "
Logon failure: the user has not been granted the requested logon type at this computer
After logging into Web Client, immediately get in Red Bold type:
Error: An error has occurred processing this request.
If there are no errors in the Event Viewer on the Web Client Server or on the local computer where you are getting the message.
You are able to login but are stuck at a GP Splash page, the shows just the Microsoft Dynamics GP logo.
CorrelationID/Event Viewer Errors
A problem occurred creating a session. See the Session Central Service logs for more information.
Session Central Service was not able to successfully communicate with the session service
The user has not been granted the requested logon type at this computer
System.Security.Authentication.AuthenticationException: The remote certificate is invalid according to the validation procedure.
The target principal name is incorrect. Cannot generate SSPI context. Unexpected error occurred when logging in
Sever cannot set status after HTTP headers have been sent
A loader exception has occurred.
Microsoft.Dynamics.Security.InvalidSecurityContextException: Microsoft.Dynamics.Security.NonExistentSecurityObjectException : The security object does not exist. Key = 25cc1a21-2cc4-4b13-a1c8-eea186fb688a
Images are not appearing on homepage.
If you wanted to mass delete sessions: This post may be of use to you.
Web Client Pre-Requisites
Check Certificate Installation (Self Signed Certificate)
Check Certificate Installation (Wild Card Certificate)
Active Directory Groups
You will need to have 2 Active Directory Groups setup
Install Dynamics GP with Web Client Runtime option
At this point, you have all necessary Pre-requisites in place and will be able to install Web Client.
How to install Web Client
Recommended Steps for Uninstalling/Reinstalling Web Client.
Helpful logs when troubleshooting errors logging in or inside web client.
To capture these logs open Web Management Console and Web Client.
The log files are located at C:\ProgramData\Microsoft Dynamics\GPSessions\Logs.
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