I have two AC 6 XTs and neither are seeing any device via aquabus. I've recently configured two PA2 ultras and a farbwerk. The address on the second PA2 was changed to 51 from the default. Farbwerk left at 20.

The initial connection between them was via a 4 pin splitter as suggested in another thread (obviously using three pins where appropriate). Nada. I then connected each device seperately to the AC 6...nada.

I reset to the factory defaults. Nothing. I changed over to the other AC and reset that one too before connecting everything up. Nada.

Within aquasuite, it doesn't register anything connected to the bus nor does it provide the extra items, fans, temp sensors, or otherwise.

Via USB, all is well and good and each device seems to be working fine, but via the aquabus, it will not see them regardless of anything I've done.

On the PA2s, I'm using aquabus port 1 (left most port). On the farbwerk, the left most port.

I'm up for suggestions here.

I've put one of the units in recovery mode and reflashed as possibly suggested elsewhere, but to no avail. I'm currently testing exclusively with the farbwerk.

AC guys, any suggestions to troubleshoot?

Thanks.

In this case, I didn't have a common ground between the power and USB paths (using a seperate PSU for power and USB to another PC). I wouldn't have thought that would have been an issue as I've tested things in a similar fashion before...but in this case, seems it is.

All happy.