swa66 - 4:54 pm on Apr 13, 2013 (gmt 0)
Smells like you might have a "bad word" in your content.
This is how it goes: unknown page on know website: google delivers ad on first virsit to page and google's adsense is scheduled to retrieve the page to check the content and make targeting etc. better than the general topic of the website.
The adsense bot then decides it doesn't fully like the content.
Ads are turned off on that page.
I'd not mess with trying to get ads by changing the URL: you'll get the entire site banned