Hello,

I have 4 2pac miners that I'm trying to run at the same time, but I keep on getting an error message "0 chips found" on at least one of the 2pacs. Sometimes, cgminer can detect the 2pac in error after repeatedly unplugging and plugging it in. On other occasions, removing the stick and plugging it back in allows that particular stick to be detected by cgminer, but then another stick is detected as "0 chips found." Does anyone know what could be going on?

I'd like to try and run a single instance of cgminer for each stick and see how they do on their own. However, I'm not sure how to enter in the    "--usb :1" command on a windows pc. I'm using a gekkoscience usb hub and I'm unclear if I need to account for the usb hub when entering in command just mentioned.

Could someone kindly post an example on how to correctly enter in this command? 

thanks very much!