I have a couple of networking issues and I am not sure how to fix them. The first is a minor one. When I try to use a p2p filesharing program, I get the max tcp connections reached in the event log. How can I increase these connections? The second issue is a major one and I hope someone can help me with it. We have a small workgroup network setup at home. There are 5 machines with 4 running xp pro and mine running vista. We are connected to a dual wan router with 2 cable modems attached. I am able to connect to the internet with no problems. I am able to copy files from the shared folders on the other machines. When I try to copy files to to one of the shares on those machines, I lose all network connectivity and my system has to have a hard reboot. I have the User Sharing Wizard unchecked. The largest file I tried to copy was only 3MB. If one of the other machines tries to copy a file to my share, it causes their machine to lock up. Any idea what is causing this and how I can fix it? I am wondering whether or not to enable the onboard marvell gigalan nic and disable the nvidia nic to see if that helps any at all. Also none of the other machines are using the v6tcp/ip stack. On my vista machine both v4 and v6 are enabled.