| Me: This very specific thing is broken in general for your product when I do a and b. Just like users x,y and z report on <random forum>. (Siemens) Support: Before I can help you, please find the serial number via <tedious procedure>, and the exact version of subsystems <x, y and z>. Me: Here you go, though I fail to see how my specific setup is relevant as the problem has been reported on forums for years, and it is easily reproducible Support: Please update to latest version x. Me: Version x has known regression which will break the machine for the customer. I did the 1 hour procedure anyway but the issue is still present. Support: Please execute this <obtuse command that runs a trace> and download the log from <airgapped machine> with SCP Me: O well, did that here is the file. Don't understand why you can't run it on your machine Support: Please try <irrelevant thing>, reboot (wait 5 minutes) and run the trace again Me: (Gives up) |
Except… recently I completely misdiagnosed something. So while I was getting politely frustrated with the support clerk, he was stepping me through a set of irrelevant seeming procedures which, indeed, resulted in identifying that a piece of hardware was broken.
In this case it was the fiber to Ethernet adapter my ISP uses. He needed me to verify that, at every step of the way, pieces of my infrastructure were not the cause of my flaky connection (they weren’t). However, as a final step he had me reboot the adapter and it didn’t start back up. Turns out this is a rare failure mode and the flaky network I’d been seeing was an early, year long, symptom of this issue.