-128 sounds like an error for sure. move your hub closer could help. If you’re sure it’s not a distance/signal issue it’s the hub itself.

Check around your local walmart/target/walgreens etc, that have those photo labs/booths. Some have proper bulk photo scanners publicly available, and will (or you can) pass your photos through one and spit out a CD for fairly cheap (sub-$10 last I checked, but years ago).