OpenSSH connection delays

OpenSSH can be sensitive to network configuration issues that often do not affect other system components. One common symptom is a substantial delay (20 seconds or more) to establish a connection. When the environment is configured correctly, a command such as ssh gandalf date should only take one or two seconds to complete.

If you are using OpenSSH and experiencing an SSH connection delay (and if IPv6 is not supported in your environment), try disabling IPv6 on your Windows nodes and remove or comment out any IPv6 addresses from the /etc/resolv.conf file.