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I helped with my friend's Helix DSP Pro MK2 which exhibited similar results when connected to laptops. It'll prompt Connect / Connected initially and disconnects momentarily.

Tried all the things you did as well - loaded the USB drivers from Helix etc.

What ended up working for me is going into the Device Manager/Hardware Manager of the laptop and picking the USB port and manually updating the drivers from there. After that, the laptop was able to successfully connect and remain connected to the laptop for tuning.

Best of luck and hope your fix was as easy as this.
 

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Also check which version of software is loaded on the DSP. If it’s earlier than the laptop version this can cause issues - it did with mine.


Sent from my iPhone using Tapatalk
 

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Discussion Starter #23
Welp, never could figure out the issue with the Helix. Picked up a Mosconi 6to8 Aerospace and it works flawlessly. So, at least I know for sure the issues were not vehicle or install related. The other issue I was having with the Zapco AP amp was hardware related. Purchased on here and ended up being dead on arrival. Paypal ruled in my favor and its off to Zapco for inspection and repair.
 
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