Reminds me of when I rewired my coax and I found that some lazy installer didn’t have the ground block grounded! Always check this and if you don’t have one, get it. They are super cheap and relatively easy to install.
When using a patch panel, make sure they are CAT6 connectors as it sounds like you have CAT6 everywhere.
Try plugging as much as you can direct into the ProCurve, especially the HDHR.
