That should do it. That cache can occasionally become outdated or corrupt, which can cause Internet connection problems. Restarting a Windows 7 system will also flush its DNS cache, but if any applications malware, perhaps are altering the cache, flushing manually could help.
The same trick also occasionally works for the connection between a router and a broadband modem. To reset your broadband modem and router, disconnect their power cables and leave the modem and router off for 30 seconds.
Wait a few moments for the modem to renegotiate its connection to the Internet and establish a solid link; then plug in the router. You should then be good to go. The vast majority of wireless broadband routers available today ship with their wireless security features disabled.
This makes it easy for novice users to set up a wireless network in their homes or offices, but it also leaves your network vulnerable to prying eyes. Although the exact procedure necessary to enable wireless security will vary from router to router, in general the steps required to access the pertinent options will be similar. To prevent unwanted users from accessing your wireless network, be sure to enable some sort of Wi-Fi security. Click on the Wireless tab or Wireless Security tab.
If you have relatively current wireless devices that support the standard, we recommend enabling WPA2 Personal on your home network because it offers stronger encryption that other methods.
Save the settings and reboot the router; at least a basic level of Wi-Fi security should now be in place. Some applications require that certain network ports be opened and forwarded to the correct PC for some of their functions to operate across the Web.
If it does, select the Wi-Fi network, and they try to connect to it. If it says Connected underneath the network name, select Disconnect , wait a moment, and then select Connect again. Try connecting to a network on a different frequency band. Many consumer Wi-Fi routers broadcast at two different network frequency bands: 2. These will appear as separate networks in the list of available Wi-Fi networks.
If your list of available Wi-Fi networks includes both a 2. To learn more about the differences between 2. An indicator light usually shows when it's on. Run the Network troubleshooter.
The Network troubleshooter can help diagnose and fix common connection problems. Select the Start button, then type settings. Restart your modem and wireless router. 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. Unplug the power cable for the modem from the power source. Some modems have a backup battery.
If you unplug the modem and lights stay on, remove the battery from the modem. Wait at least 30 seconds or so. If you had to remove the battery from the modem, put it back in.
Plug the modem back into the power source. The lights on the modem will blink. Wait for them to stop blinking. Plug your router back into the power source. Wait a few minutes for the modem and router to fully power on. Connection problems can be due to a variety of reasons—problems with the website, your device, the Wi-Fi router, modem, or your Internet Service Provider ISP. Try the following steps to help narrow down the source of the problem.
If the "Wi-Fi connected" icon appears on the right side of the taskbar, visit a different website. If the website opens, there might be a problem with the specific website. If you can't connect to another website, go to the next step. On another laptop or phone, try to connect to the same network.
If you can connect, the source of the problem is likely due to your device—go to the section Network troubleshooting on your device. If you can't connect to the network on any device, continue to the next step. Check to see if there is a problem with the connection to your Wi-Fi router. Do this by using a ping test. Select Search on the taskbar, type Command prompt.
The Command Prompt button will appear. At the command prompt, type ipconfig , and then select Enter. Look for the name of your Wi-Fi network within the results, and then find the IP address listed next to Default gateway for that Wi-Fi network. Write down that address if you need to. For example: For example, type ping The results should be something like this:. Reply from Ping statistics for If you see results like this and are getting a reply, then you have a connection to your Wi-Fi router, so there might be a problem with your modem or ISP.
Contact your ISP or check online on another device if you can to see if there's a service outage. If the results of the ping test indicate that you are not getting a reply from the router, try connecting your PC directly to your modem by using an Ethernet cable if you can.
If you can connect to the internet using an Ethernet cable, it confirms the connection problem is due to the Wi-Fi router. Make sure you've installed the latest firmware and see the documentation for your router. 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 select Enter. Type netsh int ip reset and select Enter. Uninstall the network adapter driver and restart.
Windows will automatically install the latest driver. Consider this approach if your network connection stopped working properly after a recent update. Before uninstalling, make sure you have drivers available as a backup. Select Search on the taskbar, type Device Manager , and then select Device Manager from the list of results. Expand Network adapters , and locate the network adapter for your device. After your PC restarts, Windows will automatically look for and install the network adapter driver.
Check to see if that fixes your connection problem. If Windows doesn't automatically install a driver, try to install the backup driver you saved before uninstalling. Check if your network adapter is compatible with the latest Windows Update. If you lost your network connection immediately after upgrading to or updating Windows 11, it's possible that the current driver for your network adapter was designed for a previous version of Windows.
To check, try temporarily uninstalling the recent Windows Update:. Select the Start button, then enter settings. If uninstalling the most recent update restores your network connection, check to see if an updated driver is available:. To learn how to hide updates, see Hide Windows Updates or driver updates. If you could successfully install updated drivers for your network adapter, then reinstall the latest updates.
To do this, select the Start button, then enter settings. Using network reset should be the last step you try. This can help solve connection problems you might have after upgrading from Windows 10 to Windows It can also help to fix the problem where you can connect to the internet, but can't connect to shared network drives. Network reset removes any network adapters you have installed and the settings for them.
After your PC restarts, any network adapters are reinstalled, and the settings for them are set to the defaults. Attempt to connect a different computer to the same network cable; if the new computer can connect successfully, the original computer has a failed network adapter. If neither computer can connect successfully, the problem is with the network wiring, the network switch, or the network hub. Replace the network hardware as necessary. If the network adapter has an IPv4 address in the range of With administrative credentials, run the following commands at a command prompt.
Bring a DHCP server online and restart the computer. For information about configuring IP addresses. Therefore, any connectivity problems are caused by failed or misconfigured network hardware.
Although you cannot solve the problem from a client running Windows, you can still diagnose the problem. View the output from the ipconfig command and identify the IPv4 address of your default gateway.
Verify that the IPv4 address of the default gateway is on the same subnet as the network adapter's IP address. If they are not on the same subnet, the default gateway address is incorrect-the default gateway must be on the same subnet as the client computer's IPv4 address.
Note To determine whether an IPv4 address is on the same subnet as your computer's IPv4 address, first look at your subnet mask. If your subnet mask is If they match exactly, the two IPv4 addresses are on the same subnet. If any of the numbers in the subnet mask are between 0 and , you will need to use binary math and the AND operation to determine whether they are on the same subnet. Attempt to ping the default gateway using the following command. If the Ping results show "Reply from Note Ping is not a reliable tool for determining whether computers or network equipment are available on the network.
Today, to reduce security risks, many administrators configure devices not to respond to Ping requests. However, Ping is still the most reliable tool for testing routers, and most administrators configure routers to respond to Ping requests from the local network.
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