Try searching for r8169 or r8168 - there’s a quadrillion topics on that adapter.
Internet not working - hmm - difficult - you are vague - what is not working?
- The device?
- The driver?
- The link?
- The resolver?
- The cable?
- The connection?
The kernel driver r8169 is working with latest LTS kernel 5.15.25 (unstable).