Ubuntu Ethernet Driver Fix

I’m on a Lenovo ThinkBook 15 G ITL that was running perfectly until the latest update to Ubuntu 22.04 (and now 22.10 on a second partition). Since the update the wired network port is dead—no NIC detected, no lights, nothing.

I have NOT downloaded anything from Lenovo yet, so we can start clean. What I need is:

• Finding the exact Ethernet driver (or kernel module/firmware) that matches this model for Ubuntu 22.04 +
• Installing it safely, with clear commands or a .deb/driver package I can keep for future reinstalls
• Post-install troubleshooting if the first attempt doesn’t bring the interface up (dmesg checks, modprobe tweaks, blacklist edits, etc.)

Acceptance Criteria
– The Ethernet interface appears in `ip link` / `lshw -C network` without errors
– DHCP or static IP configuration works and survives a reboot
– You provide a concise step-by-step guide so I can repeat the process after any future kernel update.

Feel free to propose remote assistance (SSH, AnyDesk, etc.) or just detailed written instructions—whichever gets me back online fastest.