K3S USB issue with Dell OptiPlex 745 - Win 10

[N1VH]

Our club’s new K3S will not stay connected and often can not be found by our Dell Optiplex 745 w/Windows 10 (it’s an older computer – but seems to run all of our Ham programs and attached devices  without issue).   Reconnecting the USB cables sometimes fixes the issue.   Oddly, if we install & remove a USB mouse to the same USB port and then reconnect the K3S, the computer finds the K3S without issue.    Cycling the computer and radio does not address the problem.  

The K3S connects instantly  on newer Dell laptops and and Apple computers.

There seems to be a driver issue with the Dell Optiplex, but all drivers are current.  We are stumped.

Any suggestions?

Thanks,

Marty – N1VH



______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]

[Don Wilhelm]

Marty,

Are you running the K3S from a HUB hub?  You will find more reliable
connection using a USB port directly on the computer.

You *could* have a marginal USB port on the computer.  It may detect a
mouse easily, but the FTDI USB to serial chip is another matter.

Since it connects reliably with other computers, the problem most
certainly is with the computer.

Win10 normally detects the FTDI adapter in the K3S as well as the CODEC
with no problem.

Have you tried removing the driver from the troublesome USB port and
re-installing it?

73,
Don W3FPR

On 3/5/2017 3:33 PM, [hidden email] wrote:
> Our club’s new K3S will not stay connected and often can not be found by our Dell Optiplex 745 w/Windows 10 (it’s an older computer – but seems to run all of our Ham programs and attached devices  without issue).   Reconnecting the USB cables sometimes fixes the issue.   Oddly, if we install & remove a USB mouse to the same USB port and then reconnect the K3S, the computer finds the K3S without issue.    Cycling the computer and radio does not address the problem.
>
> The K3S connects instantly  on newer Dell laptops and and Apple computers.
>
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]

[N1VH]

Thanks Don for your quick response and suggestions.

FYI - I reloaded the K3S firmware.  No change.

On a whim, we connected the radio to the computer via a USB Hub (non powered).  This seems to have addressed the problem.   The USB port on the computer (older chipset) must not like the current FTDI adapter in the radio.  This seems counter intuitive, but the HUB seems to facilitate the proper communications between radio and computer.

We have cycled the radio and computer many times in various sequences.  All seems to be good.
73,
Marty - N1VH



Sent from Mail for Windows 10

From: Don Wilhelm
Sent: Sunday, March 5, 2017 4:03 PM
To: [hidden email]; [hidden email]
Subject: Re: [Elecraft] K3S USB issue with Dell OptiPlex 745 - Win 10

Marty,

Are you running the K3S from a HUB hub?  You will find more reliable
connection using a USB port directly on the computer.

You *could* have a marginal USB port on the computer.  It may detect a
mouse easily, but the FTDI USB to serial chip is another matter.

Since it connects reliably with other computers, the problem most
certainly is with the computer.

Win10 normally detects the FTDI adapter in the K3S as well as the CODEC
with no problem.

Have you tried removing the driver from the troublesome USB port and
re-installing it?

73,
Don W3FPR

On 3/5/2017 3:33 PM, [hidden email] wrote:
> Our club’s new K3S will not stay connected and often can not be found by our Dell Optiplex 745 w/Windows 10 (it’s an older computer – but seems to run all of our Ham programs and attached devices  without issue).   Reconnecting the USB cables sometimes fixes the issue.   Oddly, if we install & remove a USB mouse to the same USB port and then reconnect the K3S, the computer finds the K3S without issue.    Cycling the computer and radio does not address the problem.
>
> The K3S connects instantly  on newer Dell laptops and and Apple computers.
>

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]

[Gary K9GS]

This is an easy one.  The USB ports are going to sleep.  This can be fixed in device manager. 
Google "prevent USB ports from going to sleep".




73-Gary K9GS 
-------- Original message --------From: [hidden email] Date: 3/5/17  2:33 PM  (GMT-06:00) To: [hidden email] Subject: [Elecraft] K3S USB issue with Dell OptiPlex 745 - Win 10
Our club’s new K3S will not stay connected and often can not be found by our Dell Optiplex 745 w/Windows 10 (it’s an older computer – but seems to run all of our Ham programs and attached devices  without issue).   Reconnecting the USB cables sometimes fixes the issue.   Oddly, if we install & remove a USB mouse to the same USB port and then reconnect the K3S, the computer finds the K3S without issue.    Cycling the computer and radio does not address the problem. 

The K3S connects instantly  on newer Dell laptops and and Apple computers.

There seems to be a driver issue with the Dell Optiplex, but all drivers are current.  We are stumped.

Any suggestions?

Thanks,

Marty – N1VH



______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]

[N1VH]

I thought the same thing.  We had unchecked the ‘turn power off….” tab for each USB Hub in the power management tab in device manager without success.  Fortunately the external hub fixed our problem.

Marty - N1VH



On Mar 5, 2017, at 5:37 PM, garyk9gs <[hidden email]> wrote:

prevent USB ports from going to sleep

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]