Hi all, just to let you know that, thanks to @gitman, I've fixed my problem. The complete steps are :  removing completely Anyconnect client by using posture/dart/vpn _uninstall.sh.then, rebooting.Then re installing the clienttry to launch one time.c...

Thanks a lot gitman

Hi,I've the same problem. Any chance you can share the lib64/libstdc++.so.6.0.24 from Fedora 27 ?ThanksMathieu