AWS EC2 ssh_exchange_identification: read: Connection reset by peer
<p>Had to restart an EC2 instance due to heavy load. When it came back up, I could not longer SSH into it. A <code>-vvv</code> of the ssh command produced this output, but I'm not sure how to interpret this... (IP obfuscated)</p>

<pre><code>OpenSSH_7.2p2, LibreSSL 2.4.1
debug1: Reading configuration data /Users/ecomevo/.ssh/config
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 20: Applying options for *
debug2: resolving "xx.xx.xx.xx" port 22
debug2: ssh_connect_direct: needpriv 0
debug1: Connecting to xx.xx.xx.xx [xx.xx.xx.xx] port 22.
debug1: Connection established.
debug1: identity file /Users/ecomevo/.ssh/id_rsa type 1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/ecomevo/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/ecomevo/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/ecomevo/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/ecomevo/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/ecomevo/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/ecomevo/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/ecomevo/.ssh/id_ed25519-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_7.2
</code></pre>

<p>I checked permissions on ssh related files, but not sure if that is the problem:</p>

<pre><code>$ ls -alF .ssh/
total 56
drwx------ 11 ecomevo staff   374 Jul 15 12:02 ./
drwxr-xr-x 20 ecomevo staff   680 Nov 26 18:45 ../
-rw-r--r--  1 ecomevo staff  6148 May 25  2015 .DS_Store
-rw-------  1 ecomevo staff   299 Jul 15 12:05 config
-rw-------  1 ecomevo staff   179 Jun 25  2015 environment
-rw-------  1 ecomevo staff  3326 May 15  2015 id_rsa
-rw-------  1 ecomevo staff   750 May 15  2015 id_rsa.pub
-rw-r--r--  1 ecomevo staff 17747 Oct 13 12:21 known_hosts
-rw-r--r--  1 ecomevo staff  2786 May 19  2015 known_hosts.old
</code></pre>

<p>Restarting my Mac did not fix the issue as I've seen suggested in other posts.</p>