Generic older Dell desktop
Debian 10, Buster
Almost daily I have to reboot the machine I maintain RealPort software on, and use for collecting data from remote scientific instruments that I use Digi One SP devices to interface with. This isn’t a new issue for me, but the frequency is. I reboot the machine 3-5 times per week. The frequency increased when I installed an instrument in an area with poor cell coverage (I use cellular broadband modems for Internet). I’m right on the edge of coverage so the Digi’s presence fades in-and-out. But this issue doesn’t only affect that device and virtual port, but a bunch of others with stable Internet connections as well. It’s as if the one unstable connection has infected all.
Why are the virtual com ports disappearing?
Why don’t they spawn/respawn when the Digi is on-line?
Is there a command I can run to avoid rebooting the machine?