I'm using bitcoinsharp to build my client. I try to download the blockchain in a peergroup network. Download starts, but when progress is 98%, the download is stopped & the client is waiting (2 hours without any change). The size of the downloaded blockchain file is 4.5 MB.

I use the following code:

PeerGroup peerGroup = new PeerGroup(blockStore, @params, chain);
peerGroup.AddAddress(new PeerAddress(IPAddress.Parse("84.38.65.102")));
peerGroup.AddAddress(new PeerAddress(IPAddress.Parse("83.23.15.71")));
peerGroup.Start();
peerGroup.DownloadBlockChain();

Any ideas?