EyeTV 3 software does not support the HDHomeRun Plus from SiliconDust.
It does support the earlier HDHomeRun Dual model, the HDHomeRun Connect model, and the original dual tuner HDHomeRun for North America.
If a HDHomeRun Plus is on your network, EyeTV may detect it by mistake, but that is not intended.
EyeTV is designed to work with standard MPEG-2 Transport Streams, as broadcast in the US, which the HDHomeRun Dual or HDHomeRun Connect provides. It is not designed to work with transcoded H.264 streams from the HDHomeRun Plus, and unexpected behavior is likely, including no reception.