I already posted the same message on sdr-radio.com forum three weeks ago and got no answer, so I try on this forum... maybe I'll be more lucky.
I have a problem with SDR Console when I want to use my FT-817 or my FT-857 with external radio option. I receive the error message "Port busy" and/or "offline". To cancel it and make the external radio working, I have to remove and reinsert two, three times, sometimes more, the USB radio interface. Then it generally starts working BUT, at the same time, I see the CPU activity indicator passing from 2 or 3% to nearly 30% ! I dont understand why. I tested front or back USB ports, same problem. I even bought a powered USB hub, same problem.
My computer is W7 64 bits, i3 CPU, 4 GB RAM.
I will appreciate some help trying to solve this problem.
Many thanks and 73 !