How to fix basic network issues

A computer may not detect the network it is connected with. There could be many reasons behind the failure. Few of the important are mentioned below.

1. If the Network card not connected correctly

2. Network card drivers are corrupted or software issue

3. Firewall causing the issue

4. Connection related issues

5. Any Hardware related fault or bad hardware

6. If you are facing slow PC or slow connection issue

Possible Solutions

Any network is not a very small and simple architecture. Rather it is consisted of various levels, various protocols, and variety of network configurations, different operating systems, and different setup. Below mentioned information might be very helpful to troubleshoot all such issues.

Make sure connections or LEDs

Before anything else make sure the network cable is firmly connected with the computer you are trying to fix the issue. Also, ensure that the LEDs on the network are properly light up. A green light at the back of the computer (where network card is installed) should be flashed, which indicates that the data is being transmitted.

If there is no green signal at the back of the computer, verify that the cables are properly connected and that the hub or switch has power.

Adapter functionality with pinging it

Run or execute a ping command. Windows user may ping either from run command prompt or from DOS prompt as follows:

Click Start -> Select Run and Type in

ping 127.0.0.1

or you may type

ping localhost

This basically checks that your Network card is working fine. If you receive an error message it means the card is not installed correctly or it is corrupt.

Conflict and adapter resources

Make sure that the network card installed in the computer is correctly installed and set and not conflicting with any hardware in your system. Also verify that Device Manager has no conflicts or errors. More information about any conflict can be obtained from the Device manager itself. A conflict among the devices can also cause a slow PC problem in your system.

Verify the Protocols

Most of the networks today use TCP/IP, but some of them may also require IPX/SPX and NetBEUI.

While using the TCP/IP protocols you must specify an IP address as well as a Subnet Mask. You may specify the settings as follows:

1. Click Start -> open the Control Panel

2. Double-click the Network icon

3. In the configuration tab double-click the TCP/IP protocol icon.

Do not click on the PPP or Dial-Up adapter, click on the network card adapter.

1. In the TCP/IP properties click the IP address tab

2. Specify an IP address

3. Enter the IP address and Subnet Mask address.

Example

IP Address: 192.168.1.8

Subnet Mask: 255.255.255.0

Note- All the computers on the network must all have the same Subnet Mask and have a different IP Address.

Wait for some time to connect the network.

If the computer is unable to see the network, give the computer 2-3 minutes to detect the network. In some cases it may take a computer some additional time to detect the network.

Firewall causing the issue

Most of the firewall programs filter the traffic of the network. Nowadays even a router has an in built firewall which may stop the data transmission. If your computer network is using a firewall, make sure that all ports needed are open. If you are unable to connect the network, shutdown the firewall program to ensure it is not causing the problem.

Note- A firewall issue not only can cause network issue but it also capable to make your computer slow.

These above points will immensely help to fix almost all the networks issues and will work as a complete Pc Doctor Program.