Indeed, I knew there I was missing a few salient details:Greetings;
What could be the cause of the ethernet connections suddenly not working any more:
My router is offering an IP address, when I connect the cable, but it doesn't bind. The lights on the RJ45 connector are on (orange steady, green blinking). The bi-directional arrows on the GUI are blinking, saying I don't have a connection.
It was working fine for months.
I tried changing cables, router ports, power supplies...
Wi-Fi connection works fine.
The same cable/port works for other IP devices.
Latest OS update, but it wasn't OS update related.
Thanks
Maybe a helpful reply would need knowledge of what model of RPi microcomputer board you are using, and what Operating System it is (and maybe was) running.
Under what circumstances did it stop working? An electrical storm? A new ISP? Other new devices attached to your local network?
Is your local network at home, based on your Internet connection? Or are you in some institutional or business environment?
I am using an RPi 4B (8GB). Its the stock OS, downloaded from raspberrypi.org. I had not done an update of the OS in a couple of days.
The device was running on my desk in a large waterproof enclosure, which has an ethernet surge protection inside. No electrical storms or any other nefarious weather phenomena. My home is on its own set of batteries and has whole house has surge protection as well.
It is on my own home network, behind a mikrotik firewall/router. the RPi had its own IP assigned by the router. Has been running here and this way for several weeks.
The problem appeared after I switched from the stock Canakit USB-C power supply to a Mean Well 5V/10A industrial supply, set at 5.1V. Voltage to the RPi now supplied through the 40 pin Header.
The unit booted up fine with screen and peripherals working. I had WiFi turned off, because I wasn't planning on using it. The up/down arrows of the network icon were blinking, indicating no network connection. Once I turned on Wi-Fi I was able to SSH into the unit and everything else seems to be working fine.
And yes, I did bypass the ethernet surge protector and tried different cables and ports of the router directly into the RJ45 of the RPi, including using cable and port of the computer I'm writing from. No change.
Tried to disable and reenable Wifi, in order to coax the RPi to switch to ethernet. No luck.
I also updated to the latest OS (Operating System: Debian GNU/Linux 12 (bookworm) Kernel: Linux 6.6.21-v8+)
The odd thing, as I mentioned earlier: The RPi seems to be trying to communicate with the router via ethernet, because upon connecting the cable the router changes from 'waiting' to 'offered'. But it never switches to 'bound'. Also, the lights on the ethernet adapter of the Rpi show signs of life...
Is there any other information I can provide you with?
Statistics: Posted by TriLife — Fri Apr 26, 2024 9:08 pm