I have a Cerbo GX and a number of USB devices connected, this looks like:
USB Port 1 > USB 3.0 HUB > ET112 Energy Meter and Tank140 module
USB Port 2 > USB 3.0 HUB > USB GPS and Touch Screen (using non-victron brand screen)
USB Hubs have a dedicated 12V power feed off the same circut the Cerbo is plugged into.
Under this configuration, everything works fine.
If I power cycle the cerbo OR full power circuit, everything restarts correctly, except the ET112, it never connects.
I have to manually disconnect either the hub or meter itself and reconnect to USB and it comes back up happily.
I have tried with the hub in unpowered or powered mode and same result.
If I plug the ET112 directly into the USB power on the Cerbo, then there are no issues - it will survive a reboot.
It is like the hub is holding up a stale connection and needs to be removed to clear it (I know that isn't possible but it is what is feels like).
Any thoughts on reasons for this behavior?
The next thing I'm going to try is ET112 directly into the Cerbo, and daisy chain the hubs together (the hubs are at different locations in the boat so I can't just run one).
I have also ordered a USB 2.0 version of the same hub just in case that is affecting it.