Internet shuts down on Downloads

[Danimt]

Hey guys,

 

I don't know why but my leopard is with a problem...

 

I can surf the web, use adium, watch youtube videos but... I can't make downloads?

 

When I start a download my internet shuts down after 1 or 2 minutes and I can only get back online if I reboot my machine.

 

On network window says that I'm connected and this happens too even if I'm connected directly to my modem (Dynamic connection).

 

DaniX Machine:

 

Motherboard Name: Abit IP-95

Disk Drive: Hitachi HDP725050GLA360 ATA Device (465 GB, IDE)

Network Adapter: Realtek RTL8139/810x Family Fast Ethernet NIC

Video Adapter: NVIDIA GeForce 8600 GT (256 MB)

CPU Type: DualCore Intel Core 2 Duo E6320, 1866 MHz

System Memory: 2048 MB (DDR2 SDRAM)

Audio Adapter: Realtek ALC655 @ VIA AC'97 Enhanced Audio Controller

 

 

 

I made a video for better understanding of what happens.

http://www.youtube.com/watch?v=nW-6SqK4faU