[Hagar (Doug)]

This is somewhat odd in it's action but I am at my wits end.

I have a sirrius dome with Maxdome automation on the dome rotation only. It has started throwing up a fault which I cannot understand or control.

I have a powered Hub with Maxdome, RS232 Filterwheel, Gemini and Robofocus connected to it with 4 X Keyspan RS232 to USB adapters.
The fault started with Maxdome just stopping without even an error message appearing. Now I seem to be loosing any of the connections whenever they feel like stopping. Some give an error message that a USB item has stopped working and some don't.

I have tried splitting the devices over different USB connections but it seems to happen randomly accross the entire USB network.

This fault might happen once a night up to several times a night. Last night it was the filterwheel and I ended up with 2.5 hrs of 2x2 binned M83 luminance. Nice but not what I was after.

Can anyone shed some light on what might be happening and hopefully a fix.

Thanks in anticipation.