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Unable to get IP address via DHCP on HP ProLiant DL380 Gen9 with Debian (lemm.ee)

submitted 1 month ago by JackGreenEarth@lemm.ee to c/linux@lemmy.ml

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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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[–] wildbus8979@sh.itjust.works 5 points 1 month ago* (last edited 1 month ago) (1 children)

Try using tcpdump -vvv port 67 or port 68 (add -i <interface name> if you have more than one interface) to see what is being exchanged

[–] JackGreenEarth@lemm.ee 0 points 1 month ago* (last edited 1 month ago) (2 children)

tcpdump: unknown command

[–] wildbus8979@sh.itjust.works 3 points 1 month ago

Download the package (and probably libpcap) off another machine and install it locally on a usb key