AWS Client VPN (OpenVPN) Mac user can connect but loses internet access; works on Win10
Solution 1:
I had the same issue. Changing IPv6 from automatic to link local only or disabling IPv6 on my LAN resolved this for me. Win10 didn't have an issue as IPv6 was disabled. mforsetti's idea to look at the routing table helped me see that IPv6 was the culprit in my case