Network Analyst License Error

[JamesMcElroy]

I'm trying to create Network Analyst Dataset so that I can do some routing, but when I attempt to run the "Build Network" tool in Catalog I get the attached error.  You can also see in the screenshot that Network Analyst is authorized.  What's the problem here and how do I fix it?

Thanks,

James

[DanPatterson_Retired]

Did you toggle on the extension? (Customize |Extensions)