I have Exchange 5.5 Server running on a Win 2000 Server that is giving me problems every now and then. When the Win 2000 starts up it is signed into the local domain. When I go to connect to Exchange, it hangs up when it comes to "What server do you want to connect to?" ever now and then. Sometimes it won't let me browse to the server, saying it does not respond. Other times it logs right in. Does anyone know why this is and how I can respolve this issue?