Network Problems on Windows 7

Reasons why Windows 7 isn’t connecting to the Internet -
  • * IP Address
  • * Network Configuration
  • * Firewall
IP Address – Your IP address identifies your computer whenever it goes online. If there is a conflict, say if your desktop and laptop have the same address, you may experience problems.

If you are using a static system (basically, you choose an IP address in a certain range that you get from you ISP), you will need to change the address for one of those computers. For most users, they use dynamic addresses (those given and managed by the ISP). The best way to resolve this is to refresh your IP. You can do this by going to the Start Logo and typing in ‘CMD’; this will bring up the command line interface. At the blinking cursor, type in -
ipconfig /release

This ‘releases’ the local connection. When the command states the IP address has been released, type in
ipconfig /renew

This ‘renews’ all the adapters, as well as the IP address. Through this, you may show that you are not online. Wait until everything is finished, then see if you are able to get online. If not, try restarting your computer. This will refresh your connections.

Network Configuration – The configuration of your network, like the router and cable modem, need to be correct in order for you to access the Internet. The network configuration is based on the type of network you have – either wireless or wired. Wireless networks can be set up by going through the router’s home page. The important areas to look for are.
  • * Basic setup – this should be the first page you reach. Check the Internet connection type; the default should be automatic/DHCP. You should not change this unless you are using static IP addresses or something other than what is assigned by your ISP.
  • * Wireless Settings – Check the wireless mode, which will either be B, G, disabled, or both. B and G are the standard protocols for wireless networking; if you aren’t sure which type your network cards are using, make sure that ‘both’ is selected. Broadcast SSID: make sure this enabled or else you won’t see your network online.

Firewall Settings – Windows 7 comes with a built in firewall. A firewall is an extra set of protection to ensure that your computer isn’t overtaken by spyware, hackers, and other evil doers. While great at protecting, sometimes it can be a little overprotective. With Windows 7, you can tell the firewall which programs are allowed in the door, which have to be on the waiting list, and which ones get the boot out the door.