The L2tTP protocol is slower and is usually cut by the Windows and Linux firewall natively. Since it is a tunnel at level layer 2. Both L2TP and IKv2 are slow and give a lot of lag and ping that can lead to believe that there is no internet connection for applications that need a quick response.A) Yes I use Switch
B) From what I read here, you're saying the problem lies with Switch's implementation of IKEv2. Would this issue as you understand it persist with other protocols? (Ex, L2TP?) because I can't get those to work either.