Page loading delays

For quite a while now I'm been experiencing some intermittent problems loading pages in a timely manner. The page loads hang while the browser is waiting for leaping-frog-studios.com. I assume it is the site that serves the banner ads.

If I stop the page load at that point, the entire page renders without  content in the banner. If I reload the page at the same point, the full page (sans banner) appears briefly before it reloads.

It does not happen every time, so it might be a problem with specific ads. However, it is frequent enough that it is annoying,  and I wanted to report it.  It's annoying enough that l created a HOSTS file entry to direct leaping-frog-studios.com to my loopback address.

I realize that diverts revenue from the site, so I hope this can get resolved quickly.

Andrew