Wired (Ethernet) Basic Network Troubleshooting
Verify that the network cable is properly connected to both your computer and the wall jack. Make sure the LEDs next to or above the network port on the computer are properly lit. The picture below is an example of a Local Area Network (LAN) port with two LED indicators. Typically, one LED will light up if connected properly and the other will flash when transmitting data.
If you do not notice any activity on the LED indicators, unplug the cable from the computer and then plug the cable back in again to see if that resolves the issue.
It is possible that the network cable could be damaged. Replace the network cable and try again.
The TCP/IP settings should be set to obtain an IP address automatically and to obtain the DNS server address automatically.
How-to Check TCP/IP Settings
1. Click on the Windows Icon (Start).
2. Click Control Panel.
3. Click Network and Internet.
4. Select Network and Sharing Center.
5. Select Change Adapter Settings (on left).
6. Right-click on Local Area Connection (or Wireless Network Connection for wireless problems).
7. Check if it is enabled (the first option will be "disable" if it is enabled or "enable" if it is disabled).
8. Click Properties.
9. Select Internet Protocol Version 4 (TCP/IPv4).
10. Click Properties.
11. Select Obtain an IP address automatically.
12. Select Obtain DNS server address automatically.
13. Restart the computer.
1. Click on the Windows Button to go to the Start Menu.
2. Start typing "Control Panel"
3. Click Control Panel on the right hand side.
4. Click Network and Internet.
5. Click Network and Sharing Center.
6. Click Change Adapter Settings (on left).
7. Right-click on Ethernet (or Wi-Fi for wireless problems).
8. Check if it is enabled (the first option will be "disable" if it is enabled or "enable" if it is disabled).
9. Click Properties.
10. Select Internet Protocol Version 4 (TCP/IPv4).
11. Click Properties.
12. Select Obtain an IP address automatically.
13. Select Obtain DNS server address automatically.
14. Restart the computer.
Macintosh OS X
1. Click the Apple button.
2. Click on System Preferences.
3. Click the Network icon.
4. Select Ethernet (or Airport/Wi-Fi if you are troubleshooting wireless) in the left side-bar.
5. Click the Advanced button.
6. Click on the TCP/IP tab.
7. Select Using DHCP in the Configure IPv4 field.
8. Select Automatically in the Configure IPv6 field.
9. Verify that all other fields are blank.
10. Click OK.
11. Click Apple.
12. Restart the computer.
Apple iOS (iPhone / iPad)
1. Tap Settings > General > Wi-Fi.
2. Tap the (i) next to the network you want to connect to.
3. Ensure that Configure IP is set to Automatic.
4. Tap Renew Lease.
5. Also, ensure that Configure DNS is set to Automatic.
1. Open the Settings app on your device and go to the Wi-Fi settings.
2. Highlight the network you want to connect to and select Modify Network Config.
3. Select Show Advanced Options.
4. For IP Settings, set Proxy to None and IP Settings to DHCP.
Restart the Computer
Restarting your computer can often fix network connection issues. Sometimes a computer won't connect because there is some temporary setting getting in the way. Restarting the device can clear these temporary settings, often resulting in a successful connection.