PC and laser dropping communication.

[Signchap]

I'm having regular problems with my machine (6090) losing communication with my PC. Sometimes it's a "Softdog - no same" message, and other times the PC states that the USB device is not recognised. At first I suspected the PC to be at fault, but it is the same on a second PC that I have tried. A quick scan of these boards shows that some others have had this problem but I've seen no cures for it.

Any ideas?

Ta.

[Jimbo]

What operating system have you got on the PC? I've had issues with Win8 and had to go back to using a Win7 machine.

[PhillyDee]

Try a different usb port, nit one that is part of the same pair though.

[Signchap]

Both machines use winXP. (Old, I know). Strangely, on one machine all USB ports stop working when the problem occurs, only to work again at some seemingly random time later on. I have other plotters etc plugged in and this never happens when I am using them. On the second machine it works fine once only. ie I send a job to the laser but if I try to send another I get the 'soft dog no same' message. If I close the software and reopen it works again. But only the once.

I'm starting to think this isn't computer related, rather the laser or its software mucking up USB drivers.

[Intri]

Hi there
The only time i've noticed mine do the soft dong message was when I forgot to plug it in (I use a laptop and take it in and out and don't want snap the stick)
I recently had a lot of trouble with my software on my pc to 6090 and one of my usb ports. The laptop just didn't want to talk to the 6090.
I moved the usb port and all is good. Could it also be the way you have installed the software (i'm running windows 7)
Hope this helps

[Spooky]

Power saving and "Green" compliance means the USB ports turn off unless they are sending data after a given time.

Control Panel / Power Options / Advanced....set to always on

cheers

Dave

[Signchap]

Thanks for the responses so far. I've checked power saving settings etc with no joy - I'm still having the same problems. Is anyone else using a rather old computer too? I'm wondering if my old and somewhat out of date USB ports are perhaps not suitable. As I said before, no other USB devices are causing problems. Only when I use the laser. Weirdsville!