I have tested this in both the web reporter and the legacy report writer with no issues on either one...
Legacy Report Writer:
The only thing I could see your error occurring with would be a lack of any real data.
If you run this query against your database, do you return results?
SELECT Nodes.NodeID, Nodes.Caption, Nodes.Location FROM Nodes WHERE Nodes.Caption LIKE '%%SWITCH-2960%%'
If that doesn't return any results, then your "WHERE" statement is limiting everything out. If you do get results, you may have an issue with the time restraints being placed on the query (8am - 6pm, m-f). Testing different options would be the only real way to find out.
Let me know what you get with that little test query. I'm hoping that's the issue, because that's an easy fix
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