WinSCP PuTTY error: "Unable to Open...Host does not exist"

I continue to receive the following error even after upgrading to the latest WinSCP version. Strange thing is, I have other stored sessions in WinSCP that do not have this issue.

PROBLEM:
I receive the following error message (in WinSCP) when trying to open a PuTTY session:

"Unable to open connection to (IP Address. Host does not exist."

I have checked all settings and permissions of the problem-session vs. the other one that does not have an issue. All same.

Help! Thanks in advance.
FrischInBigD

What protocol does your WinSCP session use? What protocol do you want WinSCP to use with PuTTY?

:D

Problem fixed. Not sure why, but deleted the Session and recreated it, and it worked fine. Had done that 2-3 times previously to no avail, but for some reason it now works.

Thanks!