IT was that port 445 was blocked by my ISP. When I switched to port 8888, it works no problem. So it seems a timeout may mean that the standard port is blocked.

You was using windows 2003 correct? No, here is my network topology (the relevant parts) I have a quasi static IP that is not NATed (as far as I can tell) I and using a dyndns (homedns.org) to connect to my router. Router is a Linksys WRT350N running dd-wrt build 14869. My router auto update the dy...

I'm getting this problem as well. I'm using DarkyRom 9.5 on Samsung Galaxy S. It got the same problem with stock rom. I do notice however an java error stack of which I'll transpose the first few lines Failled to connect: {my url/my ip} jcifs.d.a.d java.SocketTimeoutException: Transport endpoint is ...