[Elecraft] K3 - Intermittents serial disconnect problem

[Mike Murray]

Dick,

Thanks for the suggestion!  I've checked mine and it's set to disabled like
yours.

On to the other suggestions!
73, Mike

On Wed, Jun 28, 2017 at 11:37 AM, Dick Dievendorff <dick at elecraft.com>
wrote:

> Sometimes PC USB devices can go to sleep based on lack of activity.  The
> detail may vary by operating system version, but my Control Panel applet
> "Power Settings", Power options, advanced settings, USB settings, USB
> selective suspend setting.  I've disabled USB suspend.
>
> I don't know that this is the problem you're having, but it's one
> possibility.
>
> 73 de Dick, K6KR
>
>
> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Mike Murray
> Sent: Wednesday, June 28, 2017 08:58
> To: Elecraft at mailman.qth.net
> Subject: [Elecraft] K3 - Intermittents serial disconnect problem
>
> I've been experiencing a strange problem with my K3 and have been
> unsuccessful in isolating the cause.  At times it just loses the serial
> connection to the PC and the K3 must be power cycled to restart the
> connection.  It happens both during active contest logging as well as when
> sitting idle - the connection just stops.  I've tried several logging
> applications with the same results.
>
> At first I thought it might be related to the PigKnob I have between the
> serial port and K3, but running the serial cable direct resulted in the
> same
> problem.  I've also seen the problem using a different PC with an Elecraft
> serial to USB cable for the connection.
>
> Indications are that a problem might exist in the K3, but I can't envision
> why it would work flawlessly for some random period and then fail.  Any
> ideas for further troubleshooting? I've entertained updating to the
> KIO3BUPKT KIO3B Upgrade Kit, but don't know that the extra expense would be
> worth a try.
>
> 73,
> Mike - W0AG
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