I got similar with my network.
My server and I are on Windows Server 2003 Ent. He manages users through ADS and share internet with ISA.
Earlier, when server was using Windows 2000, I could access internet fine.
Since they have converted to Windows Server 2003, I can only browse internet. But can't browse the network or join the domain. All proxy access (downloaders (DAP, FlashGet, MassDownloader, ...) and chat messengers) has been blocked.
Got an idea
