It is assumed that there are various causes in this case.
Causes would be in DICOM files, a DICOM communication, modalities, a network, and also SonicDICOM PACS.
First of all, please attach a DICOM file which cannot be sent and a log file of SonicDICOM PACS to email, or please upload them to Google Drive, Dropbox, and other online storage service to share with us.
A log file should have been created with a name as “status.log” in the directory which was specified with SonicDICOM Manager (Log Path).
We will start an investigation once we receive files, and solve the problem as soon as possible.
Our email address is firstname.lastname@example.org.