It sounds like the USB on the host computer is disowning the USB cable. ?This can happen if RF gets into the hamshack and finds its way to the USB signals into the host. ?
First thing is to power off the radios and see if the TNCs continue to transmit after the first beacon. ?That will tell you the problem is a radio problem and not a computer or software problem.?
? ? Tadd
Tadd / KA2DEW ?
tadd@...
Raleigh NC ?FM05pv
North Carolina ham-radio chatRoom Network:?
Packet networking over ham?radio:?
Local Raleigh ham radio info:?
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On Apr 30, 2025, at 20:48, Jordan Webb via groups.io <k4avgdx@...> wrote:
I posted a question earlier today about beaconing, only to find out that was the least of my concerns. I have several nodes running linbpq in the East Tennessee area and I have begun to experience issues with LinBPQ and the NinoTNC. On my test node, I currently have one NinoTNC SMT and one standard NinoTNC. Both boards are v4 and? on the latest firmware however, both experienced the same issue on the previous firmware.?
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Both TNCs are connected over USB
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Each TNC will send one beacon before acting like it is disconnected from LinBPQ, weather it's initiated by BPQ or by a user. There is no response from either TNC or LinBPQ following these events.
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I am still able to interact with the terminal and the HTML pages following the failures. Occasionally, I will see the error on one of the TNCs showing an error to the effect of the following:
/dev/ttyACM0 could not be opened
Please help me. I have too much time, money, and sweat invested in this to see it all go down the drain.
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Regards,
Jordan Webb, NA4WX
Tadd KA2DEW in NC