Getting Kicked off Lan.

     I have a network with 2 desktop PCs running win7 a Macbook Pro running osx 10.7.5 and an IMac running osx 10.6.8
One of the PCs is the server and has a few HDs with a few TB stored.
The other 3 computers work and edit files one a specific HD in the server PC.
When any of the the 3 machines moves large amount of data to the server It blocks both MACs but not the second PC.
Restarting the server solves the problem and sometimes just waiting sets things back to normal.
I'm using dinamic IPs and a Gigabit DLinkGreen router DGS-1008D.

I guess the first thing to do is kick you neighbors off your network. You might be able to filter their MAC addresses. Second, I’d setup that one hardwired device with a Static IP address and when you can’t get to anything try the machine that has a static IP address assigned to it and see if you can ping the router. Also it's been my experience that although you can't get to the internet with the wireless devices they can still connect to the wireless channel but it can't pull DHCP. You can prove this by disconnecting and reconnecting using the wireless connection manager. It will connect but say that it's a limited connection.

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