Few instances, you won't see any images coming to DicomBurn. That is most likely as of the two reasons -
1. Your PACS PC can't see the Dicomburn PC. Or, may be the two PCS can see each other but still can't receive image, so may be due to network settings that won't allow non-standard ports to receive data, DicomBurn server default port 106. Fix the local network issues.
2. DicomBurn server could not start due to access denied to DICOM port. Fix local permission issue. Better, try a off-network PC.