KPA1500 USB not working

[Brian F. Wruble-2]

For some reason, I cannot connect to my KPA1500 using the USB port.  With 2
different PCs, connecting to the USZ port does not result in the creation
of a virtual port.  I used to be able to talk to the amp using the utility
program and the KPA1500 USB, but now I cannot.  Can anybody suggest things
for me to try?

Tnx es 73 de Brian/W3BW
--

       *Brian F. Wruble, C.F.A.
        The Conch Republic
"We seceded where others failed."
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[John O'Mara]

I had the same thing happen with my KPA1500 recently and just sent it back
to Elecraft for repair.  It is there now.  I was able to use the Ethernet
connection to connect to the Remote SW but that does no good when I need to
update the firmware or use the Utility Program which can only be done via
the USB port for some reason.  I did the same thing as you and tried several
different computers and made sure I had the correct FTDI drivers installed
but for some reason the KPA1500 would not generate the virtual com port like
it used to.

I'll post to the reflector what the fix was once they get back to me.

Jack W4NF
-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of Brian F. Wruble
Sent: Tuesday, August 4, 2020 12:26 PM
To: Elecraft Reflector <[hidden email]>
Subject: [Elecraft] KPA1500 USB not working

For some reason, I cannot connect to my KPA1500 using the USB port.  With 2
different PCs, connecting to the USZ port does not result in the creation of
a virtual port.  I used to be able to talk to the amp using the utility
program and the KPA1500 USB, but now I cannot.  Can anybody suggest things
for me to try?

Tnx es 73 de Brian/W3BW
--

       *Brian F. Wruble, C.F.A.
        The Conch Republic
"We seceded where others failed."
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[Brian F. Wruble-2]

Thanks!

On Tue, Aug 4, 2020 at 1:00 PM John O'Mara <[hidden email]> wrote:

>
> I had the same thing happen with my KPA1500 recently and just sent it back
> to Elecraft for repair.  It is there now.  I was able to use the Ethernet
> connection to connect to the Remote SW but that does no good when I need to
> update the firmware or use the Utility Program which can only be done via
> the USB port for some reason.  I did the same thing as you and tried
> several
> different computers and made sure I had the correct FTDI drivers installed
> but for some reason the KPA1500 would not generate the virtual com port
> like
> it used to.
>
> I'll post to the reflector what the fix was once they get back to me.
>
> Jack W4NF
> -----Original Message-----
> From: [hidden email]
> [mailto:[hidden email]] On Behalf Of Brian F. Wruble
> Sent: Tuesday, August 4, 2020 12:26 PM
> To: Elecraft Reflector <[hidden email]>
> Subject: [Elecraft] KPA1500 USB not working
>
> For some reason, I cannot connect to my KPA1500 using the USB port.  With 2
> different PCs, connecting to the USZ port does not result in the creation
> of
> a virtual port.  I used to be able to talk to the amp using the utility
> program and the KPA1500 USB, but now I cannot.  Can anybody suggest things
> for me to try?
>
> Tnx es 73 de Brian/W3BW
> --
>
>        *Brian F. Wruble, C.F.A.
>         The Conch Republic
> "We seceded where others failed."
> ______________________________________________________________
> 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]
>
> --

       *Brian F. Wruble, C.F.A.
        The Conch Republic
"We seceded where others failed."
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[Elecraft mailing list]

My KPA just came back for the same issue. Elecraft replaced the USB protection diode pack. Hope this helps

73 Cody KC2LSD
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[N4ZR]

But first, I'd suggest making very sure that the virtual USB port that
the KPA-1500 is opening and the one that your computer expects are the
same. Windows 10 is notorious for changing port assignments willy-nilly
when you do something as simple as  plugging in or unplugging a USB cable.

73, Pete N4ZR
Check out the Reverse Beacon Network
at <http://reversebeacon.net>, now
spotting RTTY activity worldwide.
For spots, please use your favorite
"retail" DX cluster.

On 8/4/2020 10:09 PM, Cody C via Elecraft wrote:

> My KPA just came back for the same issue. Elecraft replaced the USB protection diode pack. Hope this helps
>
> 73 Cody KC2LSD
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[Bill Frantz]

On 8/5/20 at 7:29 AM, [hidden email] (N4ZR) wrote:

>But first, I'd suggest making very sure that the virtual USB
>port that the KPA-1500 is opening and the one that your
>computer expects are the same. Windows 10 is notorious for
>changing port assignments willy-nilly when you do something as
>simple as  plugging in or unplugging a USB cable.

I've been wondering why I don't experience this problem with my
MacOS system. After looking carefully at what it saves about a
USB connection, I discovered that it was recording the serial
number of the FDTI interface chip. As a result, it doesn't
matter which hub I plug the K3(upgraded to S) or the other
USB<-->RS232 adapters I use, they are connected to the correct program.

I wonder what Linux does? If it doesn't handle reconnecting
USB<-->RS232 well, a Linux hacker could train it to follow
Apple's lead.

73 Bill AE6JV

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[Kris Mraz]

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