I have been having this problem for quite some time now. I cant download any updates and it says that i'm using a proxy or behind a firewall.
The error code is 8024402C
I have gone through all the steps mentioned in the Microsoft site and also in numerous other sites to identify the cause of the problem and nothing seems to work.
Also my Limewire, Bit comet and other p2p s/w's have stopped connecting for some reason. I'm not sure if all these problems are related to each other.
Can anyone tell me what to do?