I know a known issue

no not yet…it was too hot to work in the shop yesterday. I may pull the control box off to try isolating it today.

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So what’s the normal turn around time for Langmuir. Back in July 7th they said they were sending out a set of chokes for the usb cable and a usb isolator, and I’ve yet to see them.

Never had any problem. I would touch base with them again. Worse comes to worse. Amazon for $20 buck or so.
Ceedmon 20 Pieces Clip-on Ferrite Ring Core RFI EMI Noise Suppressor Cable Clip for 3mm/5mm/7mm/9mm/13mm Diameter Cable, Black https://a.co/d/0alHtA3

DEVMO USB Isolator Module ADUM3160 USB Digital Isolation USB to USB Voltage Isolator Board Protection (5KV ESD MAX) with OC Protection Amazon.com

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