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* IP Config provides valuable information about what network you are on, as well as your gateway address. Windows 2000
9. If you can PING someone on your local subnet, move on to the next step. If you can't, you're probably experiencing a Physical Layer failure. The usual suspects are bad cables or a NIC gone bad (they do that sometimes). With loopback, you were just testing the inner workings of the TCP/IP protocol stack; with PINGing on your local subnet you tested for failure on the failing machine. Try replacing the network card and using a new patch cable.
10. The next problem area is the gateway. Find the IP address of your gateway. You can find this in the IPCONFIG screen with NT systems (WINIPCFG for Windows 98).
11. If you don't have a gateway configured, then one will not show up in WINIPCFG, and this is a problem if you are connecting to another network. In Windows, locate Start | Settings | Control Panel | Network | TCP/IP | Gateway and add your gateway. This is your local interface on your router.
* PING this address; this will prove a solid connection from your PC to the gateway. If you have
made it this far, the PC is working, the cabling is working, and the router (gateway) interface is
working. You can skip to the next section.
* However, if you receive no response from the gateway, and you have one configured, it's time to
call the Network Administrator. Your router is improperly configured. It must have a local
interface (IP address) on your subnet to listen to the traffic on your network. If there is no
interface, have the router administrator add one. If it has one but has stopped working, it could
mean you're experiencing a router failure, and others will be affected as well. Conversely, the
router administrator may have loaded an old config; check with the administrator to make sure
this isn't the case.
12. The final step is through the gateway. PING something that is on the other side of the gateway. In an intranet, PING a printer on a remote subnet. On the Internet, PING Canon USA (128.11.96.121). If you do so successfully, you should not have a problem. If you can't get to a particular system in your network or on the Internet, that resource may not be available or the router's routing table may be misconfigured.
**Knowledge is time consuming, exhausting and costly for a trained Tech.**
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