无法通过SSH连接AWS EC2实例：Operation timed out错误求助

各位大佬，我最近碰到个头疼的问题，想请教下大家。之前一直用下面这条命令SSH连接我的AWS EC2服务器，一直都正常，但最近突然开始卡住，最后直接超时了：

ssh -i "ec2-pro-clubs-server.pem" ubuntu@ec2-35-178-119-142.eu-west-2.compute.amazonaws.com -vT

下面是详细的调试输出：

OpenSSH_9.0p1, LibreSSL 3.3.6

debug1: Reading configuration data /Users/username/.ssh/config

debug1: Reading configuration data /etc/ssh/ssh_config

debug1: /etc/ssh/ssh_config line 21: include /etc/ssh/ssh_config.d/* matched no files

debug1: /etc/ssh/ssh_config line 54: Applying options for *

debug1: Authenticator provider $SSH_SK_PROVIDER did not resolve; disabling

debug1: Connecting to ec2-35-178-119-142.eu-west-2.compute.amazonaws.com port 22.

ssh: connect to host ec2-35-178-119-142.eu-west-2.compute.amazonaws.com port 22: Operation timed out

服务器本身是正常运行的，我本地也没修改过任何SSH密钥，完全搞不懂为什么每次都会超时。有没有大佬能给点排查思路或者解决方案呀？

备注：内容来源于stack exchange，提问作者Zabs