I have a raspberry Pi 4 with raspbian, and I just booted it and connected it to ethernet. My Router does not detect the pi, so I cant ssh into it. I tried 2 different SD cards, and they both will boot on my Pi 0.
As you're trying to SSH, I'm assuming you don't have a monitor. If you have one, then please share the result of
ifconfig with us.
You've to keep these things in mind before connecting your RPi:
- Make sure you're using a standard cat5/cat6 cable with an RJ45 connector, and it's not broken.
- You should have a clean installation of Raspberry Pi OS Buster on your card, and it shouldn't be used on any other old Raspberry Pis. If you're not using a clean installation, then please reinstall the OS and try again.
- Make sure that you're connecting the ethernet cable to the correct port on your router.