Nodes are un able to restart

Asking for help?
I am not getting more information about nodes in the documentation (How to set the node unavailable and reschedule pods). Can some one could help me?
thanks in advance

Cluster information:

Kubernetes version:
Cloud being used: (put bare-metal if not on a public cloud)
Installation method:
Host OS:
CNI and version:
CRI and version:

You can format your yaml by highlighting it and pressing Ctrl-Shift-C, it will make your output easier to read.

Log in on the node and check the logs. You’re giving very little information so it could be anything at this point. Issues I’ve seen before are DNS and network issues.