Description of problem: when I try to connect to my office L2TP VPN server connection fails with the following error in NetworkManager log: /usr/sbin/pppd: /usr/lib/../lib64/pppd/2.4.7/pppol2tp.so: undefined symbol: ip_up_notifier Version-Release number of selected component (if applicable): ppp-2.4.7-19.fc28.x86_64 NetworkManager-l2tp-1.2.10-1.fc28.x86_64
Probably related: https://bugzilla.redhat.com/show_bug.cgi?id=1563157#c7
*** This bug has been marked as a duplicate of bug 1564459 ***