Are you using a host name or IP address in SnapCenter? Same question, but in PuTTY.
Do you have the proper credentials entered? SnapCenter will give the following error:
![Screenshot 2023-12-19 at 9.06.06 PM.png Screenshot 2023-12-19 at 9.06.06 PM.png](https://community.netapp.com/t5/image/serverpage/image-id/27498i399C6D430AE973E2/image-size/medium?v=v2&px=400)
If you have incorrect credentials or host type selected. If you are continuing to have problems, kindly provide a screenshot of the settings on the Add Host page.