The errors within the console are
error 10:49:12.549339+0800 NEIKEv2Provider IKEv2Session(1, B93E8A0C8B3195AE-0000000000000000) Didn't obtain IKE SA Init reply (join)
error 10:49:13.082739+0800 NEIKEv2Provider IKEv2Session(2, A655498A54D72B0C-0000000000000000) Didn't obtain IKE SA Init reply (join)
error 10:49:18.415019+0800 neagent __plugin endUsing for '46B3D0ED-0FA1-4378-9F8E-668F937D41EF' returned error: (u 200C1217-B935-54B8-90D4-6D1B124F4EF6:m (null)) (com.apple.NetworkExtension.IKEv2Provider(1.0)) endUsingRequest: known as with unknown/expired request (010E220F-2B88-45C1-831B-22169228BA28)
error 10:49:35.988519+0800 runningboardd (xpcservice:18076:18076))(501)>{vt hash: 0}:29644) Memorystatus failed with sudden error: Invalid argument (22)
error 10:49:36.015419+0800 NEIKEv2Provider Bootstrapping; exterior subsystem UIKit_PKSubsystem refused setup
error 10:49:36.031420+0800 NEIKEv2Provider can't open file at line 49450 of (1b37c146ee)
error 10:49:36.031435+0800 NEIKEv2Provider os_unix.c:49450: (2) open(/non-public/var/db/DetachedSignatures) - No such file or listing
error 10:50:07.073364+0800 NEIKEv2Provider IKEv2Session(1, 45029BCAF6EA8C7E-0000000000000000) Didn't obtain IKE SA Init reply (join)
error 10:50:38.102365+0800 NEIKEv2Provider IKEv2Session(2, 05C87694B50DCD36-0000000000000000) Didn't obtain IKE SA Init reply (join)
error 10:50:38.104871+0800 NEIKEv2Provider Failed to seek out appropriate tackle, path helps IPv4 sure IPv6 no
error 10:51:09.134447+0800 NEIKEv2Provider IKEv2Session(3, 1578A7063FB21322-0000000000000000) Didn't obtain IKE SA Init reply (join)
error 10:51:09.137326+0800 NEIKEv2Provider Failed to seek out appropriate tackle, path helps IPv4 sure IPv6 no
error 10:51:09.146182+0800 NEIKEv2Provider (Extension com.apple.NetworkExtension.IKEv2Provider): Began with error The VPN server didn't reply.
error 10:51:14.169812+0800 neagent __plugin endUsing for 'DEC188BD-2719-407B-A2A7-2ABBD747352A' returned error: (u 200C1217-B935-54B8-90D4-6D1B124F4EF6:m (null)) (com.apple.NetworkExtension.IKEv2Provider(1.0)) endUsingRequest: known as with unknown/expired request (C6A95481-223A-46AB-A593-CF9B06E84B59)
Does this point out that Macos is having an issue, or the VPN server is?
