20091130

Troubleshooting TCP/IP Networks

1. The purpose of this section is to give general tips on troubleshooting your TCP/IP LAN or Internet Connection.
2. The basics for troubleshooting are:
3. Make sure you have the same IP scheme (e.g. 192.168.0.x).
4. Make sure you have the same Subnet Mask, Gateway, and DNS IP addresses.
5. Make sure you can ping the other computer’s by IP ADDRESS
6. . Make sure you can ping the other computers by NAME
7. Make sure you have the same workgroup name (watch for trailing spaces)
8. Make sure you have the same workgroup name (watch for trailing spaces)
9. For troubleshooting purposes, uninstall any 3rd party firewall software and turn off XP's built in one. You can always add more complexity after you get it working.
10. With Windows2000, XP and Vista, make sure you have the same username and password as the person logging onto the other computers. The default setting for all but the Home Versions is to require a password for networkaccess..
11. Basically keep things simple. Remove any unnecessary firewalls, protocols or other configurations the complicate the troubleshooting process. You can add them back in later after you get things working.

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