Emule .50a is designed to run well, however its other programs that don't like it much. Windows 7 detests emule with a passion, and it took me a few moons to figure out exactly what my causes were, and then the work arounds to get past them. Emule setup should be setup for a single user preferred, and store your config and download directories on the same drive and directory emule was installed to. Your choices greatly effect how emule with run, and how well it will do that running. Emule is going to do its best work when everything is in the default directory, simply it almost seems to work faster that way. I have tried installing to another directory but storing elsewhere never worked out for me with windows 7 installed. I am no expert, however i have been using emule since its release to public, and honest to god, its the best program on the planet, if you can get it to do what you want. The above posts deal with configuration issues not actually dealing with the posts original premise, of connection issues. It is nice to see that people are still asking questions. I used to know a few techs that worked on this program full time, even i contributed a thing or two to its development, however windows 7 gave me serious pause when it would suddenly lock me out of emule, or cause emule to go firewalled, or simply and utterly toss emule offline and close it. Emule works best with the default settings in win7 environment, very few changes actually need to be made to the program other then setting up your ports, port forwarding, and your connection type, and its speed. Then let her run. I had to install a separate firewall to get around my firewalled issue, and had to turn off my anti-virus built in firewall as well. I setup other security measures to accommodate the lack of said items. I'm old, and have seen a lot of things come and go in windows, but its strange that win7 is the only one that firewalls your ass without asking first! It rather ticked me off. That on board hunk of junk they been trying to force down our throats with force since XP, eeek! So if you have remaining questions feel free to ask. I have been working now steady for almost a year with no continued or recurring issues. Have a great day.