Sounds like a flakey connection of some sort. RS-232 connector jack screws reasonably tight? Anything moved lately? Can you simplify the cable path from PC to K3 by (temporarily) removing any USB hubs, extension codes, P3s etc and connect the USB to Serial adapter directly to the K3.
If it's still flakey, can you borrow another USB to Serial adapter long enough to test that? I have seen USB to Serial adapters degrade over time, but not often. Dick, K6KR -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Ed Tobias Sent: Tuesday, September 18, 2012 11:31 AM To: [email protected] Subject: [Elecraft] K3 utility problem After doing downloads with no problems for four years I'm now running into a problem. Using K3 utility v 1.12.3.28 the utility won't hold a connection to the K3. No matter what the connection speed, the connection is interrupted. Sometimes it gets as far as showing which version of the MCU is installed. Sometimes it reaches the FPF version. Sometimes it even gets to DSP1 and 2. But, when I click "Send all new firmware to K3" I get a "no connection" error. At the bottom of the utility box it continues to say "Attempting to connect to K3 on port Com8 at x speed." I'm using Elecraft's USB/RS232 cable and that cable works fine with my logging programs, (none of which are open and they don't seem to be conflicting). My OS is Windows XP. Any thoughts? Ed, KR3E ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html

