I have over 25 years of experience in medical diagnostics, and I now work with a company that provides devices needing straightforward connections to hospital networks. However, we often face issues since our primary customers, the labs, and my sales team are not very tech-savvy. While our success rates have improved thanks to IT questionnaires, there are still times when our devices arrive, and customers find that some ports are closed when they attempt to connect. Sometimes we plan to demo these devices on guest networks, but we can't acknowledge splash screens as our devices lack direct user interfaces. Are there any simple hardware solutions out there that could help us verify if a port is open or visualize the network traffic, like an easy way to confirm guest access? I've looked into port analyzers but got a bit overwhelmed by the details, especially concerned that IT departments may not appreciate outsiders running such invasive checks. I was thinking about using a Raspberry Pi with a display to check for open port 443 but I'm not sure if that's feasible given my limited technical skills. I would greatly appreciate any guidance!
5 Answers
Would going the cellular route work for you? Depending on your device's bandwidth needs, cellular could be a viable option. However, don't underestimate the number of other hurdles you might face.
If you've got a laptop with Powershell, you could write a script to test TCP connections to specific IPs and ports. It may not help with networks using MAC address filtering, but it can be useful for diagnosing connection issues.
What you really need is clear and thorough documentation! Outline what IPs and ports your devices require for a solid connection. Include details on whether your product can handle packet inspection or needs a pass-through, and clarify if it’s proxy aware. Make sure to gather past deployment issues and create a checklist to prevent similar problems in the future. Don’t forget to have all this signed off by IT and cybersecurity before deployment!
Your best bet is to collaborate closely with your customers' IT teams. Running scans for open ports on their network can raise red flags and be seen as vulnerability probing, which can freak out security teams. You should really focus on building that relationship to facilitate smoother connections.
I get that! We do work with the IT department, but sometimes details slip through the cracks. When things go wrong, my team often takes the heat because we're not IT folks. I was hoping for a simple way to confirm port access when things don't work. Our device has an LED indicator that simply shows connection status, but it's a bit limited.
You might consider using mobile hotspots during your demos, which could simplify some connection issues. Just be cautious; community networks can present their own unique challenges, so a checklist for what you need is essential.

Absolutely! Anything that seems like unauthorized network testing is a huge no-no and could result in serious issues with their network security.