Internal network error, connection closed

[USEngineer]

I've been getting reports from my customer that a few of the people using my
program are recieving an error that states:

Error executing database query
Internal network error, connection closed

This error appears on a page which does a simple request, retrieving some data
as follows:

SELECT *
FROM Q_PA
WHERE Number = #question_num#

The people recieving the error have been unable to complete the program
(training) as the error has been persistant as reported from them. There are
about 5 or 6 people recieving this error as of now. I'd estimate only about
400-500 people use this program per year, one time each. There has been no
reported lag time when recieving this error.

[ksmith]

It would be useful to get some specifics here. What is your version of
coldfusion, platform, database and datasource type. What is the full error
associated with this from your exception and application logs.