Try using internet explorer while firefox is installed. You can do this by clicking Start>Run>type in "iexplore", and hit Enter.
If this works, then there is a configuration problem within Firefox. This can happen if you have a manual proxy configuration in IE that has not yet been configured in Firefox.
If it doesn't work, try pinging the router again. If THAT doesn't work, then you should check your network connection settings on your wireless card. Specifically your TCP/IP configuration.
If this works, then there is a configuration problem within Firefox. This can happen if you have a manual proxy configuration in IE that has not yet been configured in Firefox.
If it doesn't work, try pinging the router again. If THAT doesn't work, then you should check your network connection settings on your wireless card. Specifically your TCP/IP configuration.
