FOR WINDOWS 7

• Make sure Wi-Fi is turned on.

  1. On a laptop, open Windows Mobility Center by selecting the Start    button and then selecting Control Panel > Mobile PC > Windows Mobility Center.

  2. Look in the Wireless Network section. If Wi-Fi is on, the button should say Turn wireless off.

• Make sure the physical Wi‑Fi switch on your laptop is turned on. (An indicator light usually shows when it's on.)

• Check and make sure your PC isn’t in airplane mode.

• Move closer to the router or access point if you can.

• If you don’t see the network name at all, the router or access point might not be set to broadcast the network name. In this case, you’ll need to connect to it manually.

  1. Open Manage Wireless Networks by selecting the Start    button, and then selecting Control Panel. In the search box , type wireless and then select Manage wireless networks.

  2. Select Add, and then select Manually create a network profile.

  3. Type the network information.

  4. If you want Windows to automatically connect when the network is in range, select the Start this connection automatically check box.

  5. Select the Connect even if the network is not broadcasting check box, select Next, and then select Close.

• The network will be added to your list of networks and will be available to connect to when your computer is in range of the network. To connect to the network, follow these steps:

  1. Open Connect to a Network by selecting the network icon in the notification area.

  2. Select Unnamed Network, select Connect, and then type the network information. The network will be added to your list of networks and will be available to connect to in the future when your computer is in range of the network..

Let Windows try to help you fix the problem. Try running the Network troubleshooter to see if it can diagnose and fix the problem.

Open the Network troubleshooter by right-clicking the network icon in the notification area and then selecting Troubleshoot problems.

The Network Troubleshooter (mentioned above) can help diagnose and fix common connection problems. After using that, try running the network commands below because the combination of doing these two things can help you get connected.

If your problem isn’t fixed after running the Network troubleshooter, try to:

• Reset the TCP/IP stack.

• Release the IP address.

• Renew the IP address.

• Flush and reset the DNS client resolver cache.

Here's how to run networking commands in a command prompt:

1. Select the Start button  . Type cmd in the search box, right-click cmd in the list, select Run as administrator, and then select Yes.

2. At the command prompt, run the following commands in the listed order and then check to see if that fixes your connection problem:

   • Type netsh winsock reset and press Enter.

   • Type netsh int ip reset and press Enter.

   • Type ipconfig /release and press Enter.

   • Type ipconfig /renew and press Enter.

   • Type ipconfig /flushdns and press Enter.

This helps create a new connection to your Internet service provider (ISP). When you do this, everyone that is connected to your Wi-Fi network will be temporarily disconnected.

The steps you take to restart your modem and router can vary, but here are the general steps:

1. Unplug the power cable for the router from the power source.

2. Unplug the power cable for the modem from the power source.
   
   Some modems have a backup battery. So if you unplug the modem and lights stay on, remove the battery from the modem.

3. Wait at least 30 seconds or so.
   
   If you had to remove the battery from the modem, put it back in.

4. Plug the modem back into the power source. The lights on the modem will blink. Wait for them to stop blinking.

5. Plug your router back into the power source.
   
   Wait a few minutes for the modem and router to fully power on. You can usually tell when they’re ready by looking at the status lights on the two devices.

6. On your PC, try to connect again.

Make sure it’s not a problem with your cable modem or Internet service provider (ISP). If it is, contact your ISP.

1. Select the Start button . Type cmd in the search box, right-click cmd in the list, select Run as administrator, and then select Yes.

2. At the command prompt, type ipconfig.
   
   Look for the IP address listed next to Default gateway. Write down that address if you need to. For example, 192.168.1.1.

3. At the prompt, type ping <Default gateway> and press Enter. For example, type ping 192.168.1.1 and press Enter.
   
   The result should be something like this:
   
   Reply from 192.168.1.1: bytes=32 time=5ms TTL=64
   Reply from 192.168.1.1: bytes=32 time=5ms TTL=64
   Reply from 192.168.1.1: bytes=32 time=5ms TTL=64
   Reply from 192.168.1.1: bytes=32 time=5ms TTL=64
   Ping statistics for 192.168.1.1: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 4ms, Maximum = 5ms, Average = 4ms

If the ping is successful and you see results similar to the results above, but you can’t connect to the Internet on your PC, there may be a problem with your modem or Internet service provider (ISP).

If you’re still having trouble connecting to a network, it might be related to your network adapter.

• Try using the Network Adapter troubleshooter to automatically find and fix some problems. This troubleshooter will disable and re-enable the adapter, and try some other common repairs.
  
  Open the Network Adapter troubleshooter by selecting the Start button  and then selecting Control Panel. In the search box, type troubleshooter and then select Troubleshooting > View all > Network Adapter.

• Update the network adapter driver. An outdated or incompatible network adapter driver can cause connection problems. Check to see if an updated driver is available.

  1. Open Device Manager by selecting the Start button , selecting Control Panel, selecting System and Security, and then, under System, selecting Device Manager  . If you're prompted for an administrator password or confirmation, type the password or provide confirmation.

  2. In Device Manager, select Network adapters, right-click your adapter, and then select Properties.

  3. Select the Driver tab, and then select Update Driver.

  4. Select Search automatically for updated driver software.

If Windows can’t find a new driver for your network adapter, visit the PC manufacturer’s website and download the latest network adapter driver from there. If your PC can't connect to the Internet, you'll need to download a driver on a different PC and save it to a USB flash drive so you can install the driver on your PC. You’ll need to know the PC manufacturer and model name or number.

Here are some things to check and try with your router if you’re at home and having trouble getting connected.

• If you don't see the network name, sign in to your router and check to see if it’s set to broadcast the network name.

  1. Connect your PC to your router using an Ethernet cable.

  2. Open your web browser and type the IP address for your wireless router. (For example, 192.168.1.1 or 172.16.0.0—check the documentation for your router to find the default IP address.)

  3. Sign in with your user name and password, then make sure an option labeled Enable SSID Broadcast, Wireless SSID broadcast, or something similar is turned on. This setting is often on a Wireless Settings page.

• Check to see if your Wi-Fi network uses Media Access Control (MAC) address filtering for security. If it does, you’ll need to add the MAC address for your PC to the access list on your router before you can connect.

  1. Select the Start    button. Type cmd in the search box and right-click cmd in the list. Select Run as administrator, and then select Yes.

  2. At the command prompt, type ipconfig /all.
     
     Write down the address that appears next to Physical Address for your wireless network adapter. This is the address you’ll need to add to the access list on your router.

  To add the MAC address to the access list on your router:

  1. Open your web browser and type the IP address for your wireless router. (For example, 192.168.1.1 or 172.16.0.0—check the documentation for your router to find the default IP address.)

  2. Sign in with your user name and password, then look for a setting that says MAC Address Filter or something similar.

  3. Add the MAC address you wrote down for your PC to the access list and save your changes.

  On your PC, try to connect to the Wi-Fi network again.

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  https://support.microsoft.com/en-us/windows/fix-wi-fi-connection-issues-in-windows-9424a1f7-6a3b-65a6-4d78-7f07eee84d2c#WindowsVersion=Windows_7