If you are getting this error while connecting a host in Websphere Application Server Performance Tuning Toolkit (WAS PTT), then it means the password of wasadmin user has been changed. You need to update the password of the wasadmin user in the host setting.
- To update the password of the wasadmin user, select the host and click on the Edit menu or right-click on the hosts and click on the Edit menu.
- Enter the new password in host information and click on the OK button to save the information.
- Now try to connect with the host and you will be able to connect successfully.
Andy Radcliffe
This did not resolve the issue for my host