.NET 3.0 Download Problems

I have downloaded the wrapper executable (dotnetfx3setup.exe) of .NET 3.0 Distributable.

This wrapper executable downloads the actual .NET 3.0 Distributable (dotnetfx3.exe) executable from the internet and installs it on the system.

If you click the wrapper executable (dotnetfx3setup.exe), it gives 5 attempts to download the actual exe from the internet and then it crashes (setup error) with the following error message.

"Setup could not download all the necessary files."

Are there any problems with the proxy server or system settings?
Please help me in this regards.

Thanks in advance...

It is possible that it is a problem with your network (proxy/firewall), or it could just be that the servers are busy [it does happen].

Have you considered just going to Microsoft Update. Selecting Custom and picking the runtime from the optional downloads?