One thing you could try is to setup a cron job to reboot the system. Say at 4 AM do "shutdown -r now". I was having problems with the BBB and ver1.0 software with the USB dongle hanging up. This fixed it for the most part. Down from every other day to maybe once a month. JimK N8PXW -------------------------------------------- On Mon, 5/18/15, app_rpt-users-request@ohnosec.org <app_rpt-users-request@ohnosec.org> wrote: Subject: App_rpt-users Digest, Vol 75, Issue 37 To: app_rpt-users@ohnosec.org Date: Monday, May 18, 2015, 12:00 PM Send App_rpt-users mailing list submissions to     app_rpt-users@ohnosec.org To subscribe or unsubscribe via the World Wide Web, visit     http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users or, via email, send a message with subject or body 'help' to     app_rpt-users-request@ohnosec.org You can reach the person managing the list at     app_rpt-users-owner@ohnosec.org When replying, please edit your Subject line so it is more specific than "Re: Contents of App_rpt-users digest..." Today's Topics:    1. good morning ,    DMK URiX interface loss of connectivity       (Mike Lussier) ---------------------------------------------------------------------- Message: 1 Date: Mon, 18 May 2015 11:22:44 -0400 From: Mike Lussier <mike.lussier@gmail.com> To: ALL STAR <app_rpt-users@ohnosec.org> Subject: [App_rpt-users] good morning ,    DMK URiX interface loss of     connectivity Message-ID:     <CAJ_8STkmLw8a7ntWwE6xU8Fv+sD0bSzczu+hoEZLxWx=T_-QNg@mail.gmail.com> Content-Type: text/plain; charset="utf-8" I have havd several all star nodes up and running using the DMK URIx interfaces each connected to thier own BeagleBone Black. Normally I see the green light on the URIx blinking at me. In the past few months I have seen where the light stops blinking. some times pulling the USB for 10 seconds and plugging it back in solves the problem. worse case a full reboot of the system. . now its only getting worse instead of better. and almost daily issue. I thought about the watchdog idea. but it monitors the read write to a file  if I remember correctly. is it possible to rewrite the watchdog to monitor the pulses of the URI instead and act on the loss of pulses from the URI Mike AE4ML -- *"We must reject the idea that every time a law is broken, society is guilty rather than the law breaker.It is time to restore the American precept that each individual is accountable for his actions." ~ Ronald Regan*