Unable to get IP address via DHCP on HP ProLiant DL380 Gen9 with Debian

JackGreenEarth@lemm.ee to Linux@lemmy.ml – 23 points –

I'm having trouble getting an IP address via DHCP on my HP ProLiant DL380 Gen9 server running Debian. I've tried various troubleshooting steps, but nothing seems to work.

Error messages:

  • "No DHCPOFFERS received"
  • "No working leases in persistent database - sleeping"
  • "Activation of network connection failed" (GNOME)
  • "IP configuration unavailable" (Plasma)

Hardware:

  • HP ProLiant DL380 Gen9 server

Software:

  • Debian operating system
  • GNOME and Plasma desktop environments

Troubleshooting steps:

  • Checked network cable and ensured it's properly connected
  • Restarted network service
  • Set /etc/NetworkManager/NetworkManager.conf managed=true

Additional information:

  • Internet worked during the Debian installation process, but not after booting into the installed system.
  • The problem occurs on both GNOME and Plasma desktop environments, but Plasma provides a slightly more helpful error message.

I'd appreciate any help or guidance on resolving this issue. Has anyone else experienced similar problems with DHCP on a HP ProLiant DL380 Gen9 server with Debian?

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That's good. What's your routers IP address?

62.49.7.152 is my public IP, if that's what you mean. How do I use that information, other than allowing others to know my approximate location?

I'm looking for the private IP. (The one your router has on the inside network)

How do I find that? Is it written on the router somewhere, or is there a command to run to find it?

How did you set it up? Did you just plug it in and forget about it?

I didn't set it up; another member of my household did

Oh

Is your phone connected to WiFi? What do the network settings show on your phone?

Did you want a specific part of network settings, or is this helpful?

Set your gateway to 192.168.1.1. Can you then ping 1.1.1.1?

I tried changing the IP in manual settings, I'm not sure how I ping an IP, I assume it's a command that I don't know, but as the screenshots show, accessing a website didn't work. I saw an IP in the startup menu and tried that but it didn't seem to work

Your netmask should be 255.255.255.0

Why is that? I applied the change, and restarted the Ethernet connection, but I still don't have internet

You have a upstream issue then. I would start by checking the physical port and then work your way up until you find the fault.

It is also possible you have a bad network card as this is older hardware

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