I didn't check the ping or curl. I didn't realize that Nokia was using the Akamai CDN.

Seeing that Nokia is doing MAC address verification before allowing access to the image files, I suspect Nokia's origin servers are being used at least for database queries or some formulaic lookup on their MAC address range?

In our use of Akamai in the past, we used them for video hosting and large static content mirrors (PDF, MOV, MP4). We still had Akamai hit our origin (Informix, MySQL, and PostGREsql) servers when it came to lookups. Seeing Nokia's errors and your lookups, do you think Nokia is doing the same?

Interesting find, wetcoast. It certainly looks like Nokia isn't make effective use of Akamai's services.