After I upgraded to WhatsUp Gold v14.3.0, I began seeing an error message when I visit the Device Discovery console in the web interface. The error is "The formatter threw an exception while trying to deserialize the message: There was an error while trying to deserialize parameter http://tempuri.org/:settings The InnerException message was 'There was an error deserializing the object of type WUGDataAccess.Discovery.DataContracts.EntityDiscoverySettingsEnd element 'SSHCredentials' from namespace 'http://schemas.datacontract.org/2004/07/WUGDataAccess.Discovery.DataContracts'"

A defect exists in the WhatsUp Gold software that prevents the web interface from properly reading previously-stored device discovery preferences when the software is upgraded from a previous version. To workaround the defect, you can clear the device discovery preferences for the web interface from the WhatsUp Gold database. These preferences include the last used discovery type, the default credentials to use in discovery, and whether the SNMP sysName value is used as the display name for devices, among others. After clearing the stored preferences, please re-check all the scan settings for your web user account to set them appropriately.

Execute the following SQL statement against the WhatsUp database. If you are not familiar with running SQL statements, see the Knowledge Base article referenced at the bottom of this article.

DELETE FROM [dbo].[WebStickyProperty] WHERE [sContext] = N'Nm.Discovery' AND [sName] = N'DlgAddDeviceSettings'

After running the SQL statement, you must restart the Ipswitch Web Server process to clear the cached preferences. If you are using IIS as your web server, you must restart the World Wide Web Publishing service.

WhatsUp Gold Knowledge Base: