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troubleshoot internet connectivity problem on windows 7

Posted: 2014-09-19

If you are not able to access the internet using a Ethernet or LAN connection or via Wireless access, here is few tips that you can try to solve your problem.

STEP 1: Check Ethernet Adapter settings
Ensure that your adapter is set to get IP addresses and DNS settings automatically from the router or DHCP server.

To do this:
1) Click Start and then click the Control Panel

2) Click and open Network and Sharing Center showing in this picture

3) Click Change adapter settings on the left pane of the Network Sharing Center

4) Open the Local area connection properties by clicking on the correct Ethernet or local area connection then select Internet Protocol version 4

5) Click Properties and then ensure that Obtain an IP address automatically is selected and do the same for DNS settings. Your router must be set to provide IP address automatically in order for this to work.

STEP 2: Check the IP address of your computer and ping your router
Your computer should have an IP address, DNS and default gateway settings assuming it's correctly connected to default gateway device such as modem router, router or level 3 switch.

To check this:
1) Click Start and type cmd in the search box then click on the CMD or command prompt program

2) In the Command Prompt, type ipconfig and hit enter

3) Take a note of your IP and default gateway. It's possible for your computer to have multiple IP addresses if you have multiple connections.
Your default gateway is normally your router's IP address or the device that gets you to the internet.
If your don't have IP address, there is something wrong with your Ethernet adapter, ensure the adapter is enabled, check driver software, and the hardware is functional. Proceed to step 3 if everything looks OK here.

STEP 2: Ping your default gateway and internet page
If everything working OK on Step 3 and you are not able to connect to the internet yet. Check out where the communication drops by using the commands bellow.

4)In the command prompt program, Ping your default gateway's IP address

You should have result similar to the one above. If you cannot ping your default gateway, check your router is on and functional.
5) Ping a page on the internet by IP address, if you are able to ping your default gateway. I ping for this example bellow.

6) If you are not able to ping a websites on the Internet, call your ISP provider. The issue is mostly likely your connection from the modem/router to the internet.

7) If your able to ping a website by its IP address, try to ping it again by its name. For example; ping google.com in the example bellow.

8) If you are able to ping a website by its name, you should have access to the internet. If not, the issue might be your browser is blocking the site or have some proxy settings that is blocking you to have proper access.

9) If you cannot ping a website by its name but able to ping it by its IP address, the problem is your DNS settings. DNS is the function that translates IP address to name. Your ISP provider would normally setup a working DNS on your router, alternatively, you can use public DNS servers such as Google public servers or

I hope this general trouble shooting steps above would help you resolve your internet connectivity problem but if not your ISP should have solution for your specific problem.

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