Which view is this from? Do you have any error messages that you're seeing?
If this is from the All Computers view under your WSUS server (or another computer group) then this is the contact date from the client machine talking to the WSUS server.
If you haven't seen an error message so far, you may want to identify one of these machines and click "Check for Updates" to see what happens. Success will show updated information in the console typically, but if you get an error message that can help narrow down if something is misconfigured or needs repaired.
Sorry I left off the column headings. Yes that is a view from my all computers group the first date column is Last Contact the second date column is Last reported. When you say click "Check For Updates" do you mean from the client machine? I've done that and still don't see a change in the last reported date in the console. I'll try it again and see if there's any errors.