I can't ssh into my box for some reason. I did yesterday disable and then enable my firewall. I had one ssh open throughout these actions. However when I closed the session down, all my sftp sessions where then kicked out.
(base) hutber@hutber:~$ ssh streamline -v
OpenSSH_8.2p1 Ubuntu-4ubuntu0.3, OpenSSL 1.1.1f 31 Mar 2020
debug1: Reading configuration data /home/hutber/.ssh/config
debug1: /home/hutber/.ssh/config line 43: Applying options for streamline
debug1: /home/hutber/.ssh/config line 49: Applying options for *
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: include /etc/ssh/ssh_config.d/*.conf matched no files
debug1: /etc/ssh/ssh_config line 21: Applying options for *
debug1: Connecting to xxx.xxx.xxx.xxx [xxx.xxx.xxx.xxx] port 22.
debug1: connect to address xxx.xxx.xxx.xxx port 22: Connection timed out
ssh: connect to host xxx.xxx.xxx.xxx port 22: Connection timed out

I can also see that ssh is running 
I can't use sudo so cannot check iptables sadly! But I have KVM access with a standard user.