One of my computers won't connect to the internet?

Question

I have a wireless router with two desktops and one laptop on my network. For some reason, my third desktop won't connect. The wireless signal is good, and it sees my network. I've entered the correct password, I don't know what else to do (I'm not a computer wiz, but I did connect all the other computers successfully). This computer was connected at one time, but suddenly "lost" its internet connection--I wonder if it really is connected, but maybe the Internet Explorer is bad..but how would I find out, or fix it?

Answer 1

Bring up the 3rd computer's command line, use the other "fine" connected machine to go to router's setup page; find the Own Address field, gotta be in the form of nnn.nnn.nnn.nnn remember that text as [router's address]

Going back to 3rd computer, type in the command
ping [router's address]

Something like this should happen:

C:\Documents and Settings\n>ping 192.168.0.1

Pinging 192.168.0.1 with 32 bytes of data:

Reply from 192.168.0.1: bytes=32 time<1ms TTL=64
Reply from 192.168.0.1: bytes=32 time<1ms TTL=64
Reply from 192.168.0.1: bytes=32 time<1ms TTL=64
Reply from 192.168.0.1: bytes=32 time<1ms TTL=64

Ping statistics for 192.168.0.1:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms

C:\Documents and Settings\n>

If not, it means your 3rd computer's network software component has to be reconfigured from the ground up (as in pretending its fresh from the local store).

Answer 2

you can try and call your service provider or restarting your computer.