Your Default Gateway is your Router. Unplug the power plug to the Modem and the Router. Plug the power into just the Modem (unless you have a modem/router combo) When all the lights come up, plug in the power to the Router (unless combo of course)
Now Go to Start/Run and type inetcpl.cpl and press enter/Connections/LAN Settings. Make sure all the boxes are unchecked. Now go to Start/Run and type ncpa.cpl and press enter. Right click the Local Area connection/Properties scroll down to Internet Protocol (TCP-IP)/Properties. Make sure Obtain an IP Address and DNS Server Address Automatically are both checked. Now go to Start/Run and type CMD and press enter. IN the Command Prompt type ipconfig /release and press enter. the IP Address changes to 0.0.0.0 Now type ipconfig /flushdns and press enter. Now type ipconfig /renew. Now type ipconfig /all. You should have a new IP address try it again. If you still cannot connect please include the text output of your ipconfig /all in your next post
Now Go to Start/Run and type inetcpl.cpl and press enter/Connections/LAN Settings. Make sure all the boxes are unchecked. Now go to Start/Run and type ncpa.cpl and press enter. Right click the Local Area connection/Properties scroll down to Internet Protocol (TCP-IP)/Properties. Make sure Obtain an IP Address and DNS Server Address Automatically are both checked. Now go to Start/Run and type CMD and press enter. IN the Command Prompt type ipconfig /release and press enter. the IP Address changes to 0.0.0.0 Now type ipconfig /flushdns and press enter. Now type ipconfig /renew. Now type ipconfig /all. You should have a new IP address try it again. If you still cannot connect please include the text output of your ipconfig /all in your next post