From: Computerpilot on 11/25/2002
This is not a Linksys problem. It is most likely a problem with your router. Is it possible that your router cannot offer more than a few clients Internet access? Some routers are restricted to the number of users it can handle. This is usually done purposely to ISP-provided routers to avoid too many users on a broadband connection. Remember, broadband Internet speed is restricted to how many users are on a particular loop (your neighbors). There are many restrictions to broadband Internet users (ie, other email accounts, web services that are running on your computer - Win2k and XP pro, etc.). You may want to check with your ISP. With a broadband modem attached to a switch, the ISP usually requires a separate Internet IP address for each computer on the network. It will restrict the users to two or three computers for a hub attached to the modem but will not require a separate IP address for each one.
You may be slightly confused on how the router can tell how many computers are attached but it is true that it can. They can do this via DHCP (most likely this is the case in your scenario) or through NAT (Network Address Translation allows a communication directly with the one IP address to your internal IP address).
Other networking issues such as IP address octals also can be a concern here. However, you indicate connectivity inside and no connectivity outside. This is an issue with what IP addresses you assign. For example, you cannot access a 10.10.1.1 IP addressed computer if your IP address is 192.168.1.1.
In addition, are you running Zone Alarm or other personal firewall? These can also be causing your problems if improperly configured. I would UNINSTALL (not disable) any firewall software to test this theory.
You may also try to renew your IP address registration with your cable modem DHCP. You can do this by going to the 'run' command off the start menu and typing 'winipcfg'. Choose your adapter from the dropdown box then click 'renew' button. This will get you another IP address assignment from the router. My guess is that if you do this while one of the other computers are not operating and your problem is associated with restricted users on the router, then you will regain access to the Internet but your other computer will now exhibit the problem.
Other issues with Windows 98 can relate to DNS server resolution for websites. You may try asking your ISP for the primary and secondary DNS server addresses and set these with your network settings. This information is usually given in the subscription packet of info that your ISP gave you after install. Otherwise, you may find it on their website or by calling them. You can try this DNS server (ONLY AS A TEST!!!) to test this theory (you will need to restart the computer after you set this DNS address as your primary): 126.96.36.199.
Hope this troubleshooting guide helps you out (and others).