Strange error message, cannot post anything on my blog

First, I have to use a proxy to view my blog/dashboard because of the firewall in my locale.

Second, then I cannot post, comment, or alter anything about the blog via the proxy server.

Neither of these two points are an issue with another word press blog I administer.

Here’s the error message I get when I try to post, comment, or alter/add to my blog:

You are trying to use a node of the CoDeeN CDN Network. Your IP address is not recognized as a valid PlanetLab address, so your access to CoDeeN does not include all HTTP types

Please help.

Thank you!
L.