[Elecraft] KAT500 and KPA500 utility program ptoblems

[Carl Yaffey]

My current setup is K3S, P3, KPA500, KAT500
I recently replaced my K3 with the K3S. I was able to run all the utilities with no problem when I had the K3. 
Now, the K3S and P3 utilities are fine. But not so withe the KAT and KPA ones.
Both take several minutes to come up and run.

KAT500 utility: can’t connect (KAT500 not responding)

KPA500 utility: connects at 38400 no problem but no info shows in the operate tab. firmware N/A. I try to load firmware and it fails. I tried to force a load (per the manual) with no luck.

More info:
The K3 is set to USB.
The computer is an Apple mac mini with the latest OS.
I’ve refreshed the ports before trying to connect.
I’ve tried rebooting, unplugging  and replugging the USB cables.
I’ve checked all the cable connections.

Note that all units are operating OK except:
On 6 meters, the KPA faults when trying to run more than 200 watts. 
It used to work fine when I had a K3 driving it.

Any suggestions?
TNX and 73,
Carl Yaffey  K8NU
Recording studio.
cyaffeyNO_SPAM at gmail.com 
614 268 6353, Columbus OH
http://www.carl-yaffey.com
http://www.grassahol.com
http://www.bluesswing.com