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never tried that , I just let it do its thing with my eyes glossed over

its not a power issue, even if I power the hub through its usb connection only the pk3 icd3 still work.
neither is powering the dev board in use.
I wonder if the pc usb ports behave...

I have had issues with this too with both pk3 and icd3 . today I noticed it was much worse when using salea logic no salea in use minimal connection losses , so I did a bit of googling . one...

I get that too with icd3 and pk3 , I think it may be a usb issue unplugging and reconnecting programmer fixes it for a while.
saleae logic8 now does it too [keeps saying it can't keep up even @50k...