This is a standard Windows error with the code 64:

C:\>net helpmsg 64

The specified network name is no longer available.

Some Caché code called some OS system function that returned this error and for some reason it was logged.

To investigate this further -- check what process logged the error message. Find in the Caché Audit a Login event with the corresponding process. Perhaps it might give you some hint

Generally, messages with severity 0 are informational, 1 -- warnings, 2 -- error, 3 -- critical

No. If you have Windows NT authentication enabled to connect to SQL Server then SQL Server ODBC driver uses OS user that executes irisdb.exe process. That's the same use as configured to run service IRIS.

If you'd like to use different user for authentication , then choose SQL Server authentication and specify that user and its password in SQL Gateway connection settings

Recompile also FIelds class.

Yes, looks correct.

I have the following classes:

Class dc2303.Field Extends (%Persistent, %XML.Adaptor)

Parameter XMLTYPE = "UDFLookupFieldInstance";

Parameter XMLFORMAT = "literal";

Parameter XMLNAME = "Field";

Parameter NAMESPACE = "";

Property Suffix As %String(XMLNAME = "Suffix", XMLPROJECTION = "ATTRIBUTE");

Property Description As %String(XMLNAME = "Description", XMLPROJECTION = "ATTRIBUTE");



Class dc2303.Fields Extends (%Persistent, %XML.Adaptor)

Parameter XMLFORMAT = "literal";

Parameter XMLNAME = "Fields";

Parameter XMLSEQUENCE = 1;

Parameter NAMESPACE = "";


Property Fields As list Of Field(XMLNAME = "Field", XMLPROJECTION = "ELEMENT");

/// d ##class(dc2303.Fields).TestFieldsCorrelate()
ClassMethod TestFieldsCorrelate()
    Set reader = ##class(%XML.Reader).%New()
    Set tSc=reader.OpenFile("c:\temp\Fields.xml")
    #dim match as Fields
    Do reader.Correlate("Fields","dc2303.Fields")           
    While reader.Next(.match,.tSc) {
        w !, "Hurrah"
    If $$$ISERR(tSc) {
        w !,  $SYSTEM.Status.GetErrorText(tSc)


And fields.xml is

<Fields xmlns:xsi="" >
    <Field xsi:type="UDFLookupFieldInstance" ID="2925" Description="FIRE ALARM ACTIVE" Suffix="FDT_ACTIVATE"/>