Can't connect to TX1 by ssh


I just started using TX1 and wanted to use my laptop to program using CUDA C/C++ code, then run it on TX1. However, there is a very serious problem I’m facing is that I could not find TX1 when I’m building the project. The error which I’m encountering is like this

Failed to connect sshd on ""


Unable to establish shell connection to "TX1"

But the first time I was trying to connect was successful. And two days later when I wanted to use it, it didn’t work any longer.

So what should I do? Thanks for any help.

Does a manual ssh on command line for just login work? I’d suspect that the complications of keys or other setup are getting in the way if you are using something automated, e.g., through nsight. If manual ssh fails, does ping work?