If you’re like me, you’ve noticed that networking in Windows isn’t always as simple as it’s intended to be. After several trial and error episodes and extensive research, I have come up with the following list of things to check when they’re just not going right. I’ve also included some common issues and errors with their solutions.
Here's the checklist:
Ensure that any firewalls are configured properly to allow access if present.
Run a full antivirus scan and adware/spyware scan.
Run the Windows Network Troubleshooter.
From the start button, open the Control Panel.
Click Networking and Internet Connections.
Select Home or Small Office Networking from the Troubleshooters section of the left pane.
Run the Windows Network Diagnostics Wizard.
From the start button, open the Control Panel.
Click Networking and Internet Connections.
Select Network Diagnostics in the Troubleshooters section of the left pane.
Check the physical connection.
For a "wired" connection, begin by checking that the network cable is plugged into the network adapter and to the wall jack (or router/switch/etc.). Be sure that connections aren't too loose and that the cable is in good physical condition (no kinks, cuts, or breaks). If possible, properly test the cable for pin-out and signal strength. If you do not have access to the proper test equipment, swap the cable out for one that is known to work.
For a wireless connection, be sure that your hardware is supported by the local network and in range. Also be sure that you have the proper credentials to connect to the network.
Confirm your Local Area Connection settings are configured properly for the connection. Be sure that you are using the proper Authentication method if required. Additionally,
For connections using DHCP, use your Local Area Connection's repair feature. This will attempt to release and renew your IP lease.
For connections without DHCP, be sure that you are set to use your assigned IP address, Subnet Mask, and Default Gateway along with any other NetBIOS, WINS, or DNS settings.
Attempt to repair/reinstall TCP/IP and Winsock settings. This can be done manually or with a utility like WinsockXP Fix.
Uninstall any other network protocols such as NetBEUI and IPX/SPX.
Install the latest drivers for your network adapter and check for any resource conflicts.
Check the activity lights on your network adapter as well as any routers, switches, or gateways. Try removing power from any such devices and allowing them to cycle back up.
Remove any such devices and connect your machine directly whenever possible. If this solves the problem, double check the device settings and/or replace the removed device with a new one.
Replace your network adapter.
If you’re having problems connecting your network to the Internet, now is a good time to test or replace your cable or DSL modem.
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