Kad koristim proxy server mogu pregledati stranice bez problema, ali kada krenem nesto napisat npr. na ovaj forum ili nesto slicno onda mi javi

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

Zasto? Je li treba mozda neki novi proxy server ili nesto drugo?