Host did not accept the connection

All,
I'm using Conquest 1.4.16 and a client that uses LeadTools to talk to the Conquest Server. I can connect to the Conquest Server, query the patient records and the DICOM data but I cannot retrieve the images. I get an "Host did not accept connection" error. Below is the log report from Conquest Server

CONQUESTSRV1] Query On Image
[CONQUESTSRV1] Issue Query on Columns: DICOMImages.SOPClassUI, DICOMImages.SOPInstanc, DICOMSeries.SeriesInst, DICOMStudies.PatientID, DICOMStudies.StudyInsta,DICOMImages.ObjectFile,DICOMImages.DeviceName
[CONQUESTSRV1] Values: DICOMImages.SOPInstanc = '1.2.840.113619.2.55.3.380422846.25.1282910762.410.82' and DICOMSeries.SeriesInst = '1.2.840.113619.2.55.3.380422846.25.1282910762.245' and DICOMStudies.PatientID = '02-04' and DICOMStudies.StudyInsta = '1.2.840.113745.101000.2197000.40412.5572.12823234' and DICOMSeries.StudyInsta = DICOMStudies.StudyInsta and DICOMImages.SeriesInst = DICOMSeries.SeriesInst
[CONQUESTSRV1] Tables: DICOMImages, DICOMSeries, DICOMStudies
[CONQUESTSRV1] Records = 1
[CONQUESTSRV1] Number of images to send: 1
[CONQUESTSRV1] Host 'PDTest' did not accept the connection
[CONQUESTSRV1] C-Move (PatientRoot)

Any clues?
Thanks

P.S. I'm a newbie to DICOMS and PACS servers.

Thanks Marcel. I have Conquest Server and LeadTools client installed on the same machine. I had to change the ip address for the LeadTools client (named PDTest) from localhost to my machine's ip address. I got farther now.
Thanks again