Heya. I recently had to buy a new modem since mine was killed by a lightningstorm. After that the modem worked perfectly, no DISCONNECTIONS or WHATEVER. Then I bought:
a new gfx card
a new motherboard

but the internet seemed to work flawlessly. But this is not the case, the Internet disconnects and gives me unnaturally high latency in games(bearable, but STILL..)

anyone know what the cause might be? My modem is a netgear ADSL2+ Modem and my network adapter is called nforce 10/100/100 Mbps Network controller. Also when I got on the internet the first time on this computer, I had to go to Network Connections --> SETTINGS --> Internet Protocol --> and set a default gate to 192.168.1.1 for it to work and it seems to disconnect when I try to start my torrent PROGRAM (when it gets up to speed on a torrent..)It might not be a modem problem, maybe NIC?, could be anything at this point. Make sure u install the correct drivers, chipset and SW with the new card and MB. BTW does the does the MB has a built in NIC?
When u state "Network Connections --> Settings --> Internet Protocol --> and set a default gate to 192.168.1.1" r u connecting thru a router ? If u r check the router setting.

Open a cmd prompt window and try ping to the ip adders. Write down the answers, try it from another PC and compare.