It's really frustrating to call the helpdesk and get:
HD: Hello! What's your customer number?
Me: xxxxxxx
HD: Thank you, what's the problem?
Me: It is failing to connect to the network. I've tried a soft reset, then a factory reset, and finally reinstalling the firmware. While sniffing the traffic it looks like the device is failing to accept the DHCP responses from my server, as it continually broadcasts DHCP solicitations and is send responses but never configures its network settings.
HD: Have you tried turning it off and back on?
Also I’m genuinely curious, what sort of response you expected to get when you called and told them about traffic sniffing.
If someone called in with the GP's depth of troubleshooting completed, the standard policy was say something like 'this is outside of my allowable offered support'(but if you really know how, help, but not officially!).