I cannot connect to Xavier NX with SSH

[Heartful-echo]

Hi…

I cannot connect to NVIDIA® Jetson™ Xavier NX with SSH.
Anyone know what could be causing this?

Below is my environment.

I have confirmed that there are no problems with the following items.
・The SSH port number is 22.
・Port number 22 is LISTEN.
・ufw is not installed.
・$ ssh {own IP address} I entered the password and was able to connect.

It cannot be connected from the outside.
I’ve searched for 3 hours and can’t find it.

By the way, I also own Jetson AGX Xavier and Jetson AGX Orin, but SSH connection is possible here.

[DaneLLL]

Hi,
If your host and the Jetson devices are in same LAN, it should work fine. Are you able to re-flash Xavier NX and give it a try? Or connect it to a Linux host through type-A to micro B adapter and try $ ssh USER_NAME@192.168.55.1

[Heartful-echo]

Hi

@DaneLLL

I am always grateful for your help.
Permission denied occurred.

[Heartful-echo]

I looked at /var/log/auth.log.
The log on the Jetson side when SSH is connected from the host PC is framed in red.
User is Invalid. . . What is it…

[Heartful-echo]

I am very sorry to all of you.
I mistyped my username.