


How to fix 'The default gateway is not available' on Windows
Jul 05, 2025 am 02:37 AMThe problem of "default gateway is not available" is usually caused by a network configuration or hardware connection failure. 1. First check whether the wireless or wired connection is normal, make sure the device is connected to the network, try to restart the router or replace the network cable; 2. Run the command prompt with administrator permissions, execute the netsh winsock reset and netsh int ip reset commands to reset the TCP/IP protocol and Winsock components; 3. Manually set the IPv4 address, including the IP address, subnet mask, default gateway and DNS server, to avoid conflicts with other devices; 4. Update or roll back the network card driver, and give priority to using the official driver provided by the device manager or the manufacturer's official website. In most cases, operating in this order can solve the problem. If it still cannot be solved, you can consider restoring the system or contacting the network service provider for further investigation.
If you encounter the problem of "the default gateway is not available", most of the time there is a problem with the network configuration or hardware connection. When the Windows system prompts this error, it usually means that the computer cannot access the Internet through the router normally. The solution is actually not too complicated, but it requires step-by-step investigation.

1. Check whether the wireless or wired connection is normal
First, confirm whether your device is really connected to the network. If it is a wired connection, check if the network cable is plugged in; if it is wireless, check whether the correct Wi-Fi is connected.

- If it's Wi-Fi for laptops, you can try restarting the router to see if there is any improvement
- Desktop users can try changing a network cable to troubleshoot the possibility of line failure
- Sometimes there is a problem with the router itself, and rebooting the router can often solve the problem.
If other devices can still access the Internet, but your computer is not, then the problem is likely to be in the local settings.
2. Reset TCP/IP protocol and Winsock
An error in the system's own network protocol may also cause this problem. You can run the command prompt with administrator permissions and execute the following commands:

-
netsh winsock reset
-
netsh int ip reset
After execution, restart the computer. These two commands reset the network-related core components and are very helpful in fixing underlying communication exceptions. If you have installed any firewall software or network management tools recently, it may affect the normal operation of these modules.
3. Modify the gateway address of IPv4 (manually set the IP)
Sometimes there is a problem with the router's automatic IP allocation, you can try manually setting the IP address and default gateway.
Open Control Panel → Network and Sharing Center → Change Adapter Settings → Find the currently used network connection → Double-click to enter properties → Select "Internet Protocol Version 4 (TCP/IPv4)" → Click "Properties"
Then fill in:
- IP address: For example, 192.168.1.10 (the last number can be set to between 10 and 200)
- Subnet mask: 255.255.255.0 (generally generated automatically)
- Default gateway: usually 192.168.1.1 or 192.168.0.1 (just look at your router address)
- DNS server: can fill in 8.8.8.8 and 8.8.4.4 (Google public DNS)
Be careful not to conflict with other devices, and it is not recommended to change the subnet mask and gateway address at will, unless you know what you are doing.
4. Update or rollback the network card driver
Sometimes the network card driver is incompatible or broken. You can find the network adapter in the Device Manager, right-click on your network card device, and select "Update Driver" or "Rollease Driver".
- If there is no suitable driver, you can also download the latest corresponding driver to install it on the official website.
- Third-party driver software is not recommended, it is easy to introduce unstable factors
In addition, the driver packages provided by some laptop manufacturers (such as Dell and Lenovo) are more stable, and it is recommended to use official channels to obtain them first.
Basically these common ways of dealing with it. In most cases, try it in sequence to solve the problem. If it still doesn't work, you may want to consider system restoration or contact the network service provider for further investigation.
The above is the detailed content of How to fix 'The default gateway is not available' on Windows. For more information, please follow other related articles on the PHP Chinese website!

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