Holy cow, I wrote a book!
This is a corollary to
Don't forget to ask your question:
Making some statements and asking for advice isn't a question.
When we do X, and then select Y, and then
click the Q button, we get an error message
saying that Q can't be performed because
"The computer Z that Y refers to cannot be contacted."
Can you provide advice?
Now, this person did remember to ask a question,
but the question doesn't really specify what sort of
advice was desired.
In this case, the question might be
"Can you please provide advice on how we can avoid that
But even that isn't a good question.
The error message already told you how to fix the problem:
Re-establish the connection to the computer Z.
Is the problem that you think the connection is working
and you're still getting the error?
Is the problem that you don't want to or can't establish
a connection to computer Z, but you still want to perform
Why do you think it should be possible to perform the operation
even though there is no Z?
Do you simply want to suppress the error message?