Ok- I have been living with this issue for 5 years, and just wondering if anyone has a solution. This occurred with my 7300, and now my 7610. This also occurred with my 2009 iMac, and now my new 2019 iMac. I lived with it all this time thinking it was my old computer, but I have the same exact issue with my new machine. This is intermittent, probably occurring about 50% of the time. I turn on my radio, then boot up, and I get 0.000 000 on the frequency display. Basically no rig control. The waterfall still works, and I still get decodes, but no TX or FREQ readout. I then close the software, turn off the power supply to the rig, wait 30 seconds, turn the rig on, wait 10 seconds, then start WSJT-X, and again, it may, or may not connect. Sometimes I have to do this 5 or 6 times to get it to work. Other times I will go through this sequence and it will work correctly with no issues, working the very first time. Other days I have to restart everything, multiple times to get it going. I have found that leaving the PS on, and just using the power button on the rig helps, but again, not all the time. I have tried a different order of powering things on, but again, it is hit or miss. Any ideas????