[Elecraft] K3-0-mini / K3 dilemma

[Michael Gillen]

Another idea is to check the port settings on the router to ensure the port that Elecraft is using is “open”.

> On May 16, 2018, at 5:57 AM, rich hurd WC3T <rich at wc3t.us> wrote:
> 
> 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
>> 
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> 
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