C2_W3:A connection to the notebook server could not be established

When I am trying to open C2_W3 lab assignment, I am getting below error. [lab id=zpecqcyjrsfn]

A connection to the notebook server could not be established. The notebook will continue trying to reconnect. Check your network connection or notebook server configuration.

Can someone please help me.

Hi @harsh_yadav ,

It looks like the kernel is not responding. Could you try restarting the kernel:
Kernel → Shutdown → restart.