MemSQL 6.7 installation

Few days back launched one EC2 machine in installed MemSQL 6.7. Everything was working fine.
Now When i started that machine and want to see
memsql-admin list-nodes

it says
No nodes found

Public IP was changed.

How can i recover that ?

Can you check the output of memsqlctl list-nodes on the same machine. Also, are you running as the same user as you were when you originally set the cluster up? Toolbox stores it’s state in the current user’s home directory - so if you use a different user you will not see the same state.