Are you connecting directly to the modem or through a router?
Some ISP's require you to register a new device if you are hooking it up directly.
If you are behind a router, try this quick check:
go to start>run, type "cmd" (no quotes)
then type ipconfig /all
you will get a message with an IP address and subnet mask and gateway. It should look something like this:
Quote:
Windows IP Configuration
Host Name . . . . . . . . . . . . : ilikepie
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
Ethernet adapter Local Area Connection:
Media State . . . . . . . . . . . : Media disconnected
Description . . . . . . . . . . . : 3Com 3C920B-EMB Integrated Fast Ethe
rnet Controller #2
Physical Address. . . . . . . . . : XX-XX-54-0C-XX-XX
Ethernet adapter Local Area Connection 2:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : NVIDIA nForce MCP Networking Adapter
#2
Physical Address. . . . . . . . . : 00-0C-XX-XX-XX-XX
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 172.16.4.210
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . : 172.16.0.1
DNS Servers . . . . . . . . . . . : 172.16.0.2
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After that, you need to ping your gateway. So I would type "ping 172.16.0.1", but look up your gateway when you did the last command. If it works, you should get:
Quote:
Pinging 172.16.0.1 with 32 bytes of data:
Reply from 172.16.0.1: bytes=32 time<1ms TTL=255
Reply from 172.16.0.1: bytes=32 time<1ms TTL=255
Reply from 172.16.0.1: bytes=32 time<1ms TTL=255
Reply from 172.16.0.1: bytes=32 time<1ms TTL=255
Ping statistics for 172.16.0.1:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms
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If it worked, try typing "ping 66.94.234.13" and then "ping yahoo.com", and post if you get anything unusual. Depending on the results, you might need to do different things.