[Elecraft] K3-0-mini / K3 dilemma

[rich hurd WC3T]

I'm just spitballing here, but could the net connection there be double
NATted so that the rig can't see the packets returning (since they have a
different address?)

Packets are packets.  I had this problem - loss of connectivity - albeit
with a media server in my house that I wanted to be able to hook to
remotely.   I called my ISP who pinky swore that they were not double
NATting the address.  I did some digging and logged into my cable modem and
sure enough, NAT was turned on (which meant there was one translation in my
router, and one more in the modem.)  Double NAT. Turned it off in the modem
and bingo, the server was visible to the world.

I'm hesitant to tender this solution, mindful of the old saw that "if the
only tool you have is a hammer, every job looks like a nail."   But at
least it's something you can eliminate and it might be good for thought.

On Wed, May 16, 2018 at 07:18 John P. Cummins, Sr. <jpcumminssr at gmail.com>
wrote:

> I have been working with a retired doctor ham friend of mine who has
> moved into an assisted living facility.  He has been licensed and active
> for more than 40 years.
>
> He wanted to be able to use his K3 remotely and I had helped another
> friend of mine who is blind and is also a long time active ham get back
> on the air from a condo using the Kenwood TS480SAT -Remoterig RRC1258set
> implementation. This approach has worked for nearly 2 years without a
> hitch.
>
> I suggested to my doctor friend that we should test whether it would be
> possible to operate remotely from within the large facility where he
> lived.  So we met with the IT staff there and they had no issues and
> showed that his apartment had internet already installed. Before we
> ordered any equipment I borrowed the TS450SAT control head and Remoterig
> RRC1258-control and tested from his apartment at the assisted living
> facility and it worked perfectly.
>
> On the strength of the testing we ordered the K3-0-mini/K3 Twin package
> from Elecraft.  After getting over the shorted cable that goes to the
> ACC jack on the K3 and a dead power supply for the mini I successfully
> tested on my LAN and also from several other remote locations.  We then
> unsuccessfully attempted to operate from the assisted living facility.
>
> For more than a month now we have been communicating with Microbit and
> Elecraft K3 support trying to figure out what the problem is.
> Additional tests with the TS-450SAT continue to operate perfectly from
> the facility and testing the K3-0-mini from several other sites out side
> of the assisted living facility also work perfectly.
>
> Working with the IT staff at the facility we are convinced that there is
> a difference in the packets being generated by the Elecraft and the
> Kenwood but I have not been able find any documentation to help identify
> that difference.  We feel certain that the internet server at the
> facility is finding something suspicious in the Elecraft packets that
> are not present in the Kenwood packets.
>
> Has anyone else run across something like this?
>
> John, AD4S
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to rich at wc3t.us

-- 
72,
Rich Hurd / WC3T / DMR: 3142737
PA Army MARS, Northampton County RACES, EPA-ARRL Public Information Officer
for Scouting
Latitude: 40.761621 Longitude: -75.288988  (40°45.68' N 75°17.33' W) Grid:
*FN20is*