Changing the IP address on a router is a task that may be required in various situations, whether it's to resolve an address conflict on a local network or to hide the device's actual location on the global network. Understanding how exactly it works routing Address distribution and address allocation are critical for properly configuring home or office internet. Users often confuse the external IP assigned by the ISP with the internal gateway address used to access the router's settings.
In this article, we'll cover both address change options in detail so you can choose the method that best suits your situation. You'll learn the steps needed to reconfigure your device's interface and how to properly request a change of external IP from your internet service provider. Proper network configuration ensures not only a stable connection but also basic cybersecurity your digital perimeter.
Differences between WAN and LAN addresses
Before making any changes to your hardware configuration, it is important to clearly understand the difference between addressing types. WAN port (Wide Area Network) is the interface through which the router accesses the global internet. This is the address that websites and servers see when you connect to them. Changing it is usually beyond the user's direct control and depends on the provider's policy.
On the other side, LAN interface (Local Area Network) is responsible for creating a local network within your home or office. This is the address you enter in your browser (e.g., 192.168.0.1) to access your router's control panel. Changing this setting helps avoid conflicts when connecting a new router to an existing complex network or using it as a repeater.
⚠️ Warning: Changing the LAN interface IP address will result in loss of connection to the router. You will need to re-enter the new address in your browser to access the settings.
It's also important to distinguish between static and dynamic addresses. A dynamic IP changes every time you reconnect to the provider's network, while a static IP is permanently assigned to your contract. Changing a static external address often requires a separate service from your internet provider, while a local address can be changed independently at any time.
Preparing to change network settings
Any manipulation of network settings requires prior preparation to avoid unexpected internet disruptions. First, make sure you have physical access to the device and the ability to connect your computer to the router via Ethernet cableThe connection may be interrupted while changing parameters, which will block access to the control interface.
You'll also need your admin panel login credentials. If you've never changed the factory settings, the login and password are often found on a sticker on the bottom of the device. For devices from popular brands, such as TP-Link, Asus or Keenetic, standard combinations are often admin/admin or admin/password.
☑️ Preparing to set up your router
It's a good idea to record your current network settings, especially if you're using specific DNS settings or static routes. This will allow you to quickly restore network functionality in the event of an error. Also, record your current gateway IP address and subnet mask to have a point of return.
How to change a router's local IP address
Changing the local address (LAN IP) is a standard procedure for most modern router models. After logging into the control panel via a browser, you need to find the section responsible for local network settings. Depending on the device model and firmware version, this section may be called Network, LAN, Local area network or TCP/IP settings.
Within this section, you will see a field indicating the current IP address. The default value is usually 192.168.0.1 or 192.168.1.1You can change the last digit or the third octet of the address to create unique addressing. For example, changing the address to 192.168.50.1 This will help avoid conflicts if you connect this router to another network that already uses the standard range.
After entering the new value, click the Save or Apply button. The router will warn you that the connection will be interrupted. This is normal system behavior. After rebooting the device, you will need to enter the new address in the browser's address bar to access the control menu again.
Changing the external IP address (WAN)
If your goal is to change your external IP address visible on the internet, the approach is completely different. In most cases, providers use dynamic addressing, which means the IP address automatically changes with each new connection. The easiest way to get a new address in this situation is to simply reboot the router.
To do this, you can use the software reset function in the router interface or physically unplug the device from the power supply for 10-15 minutes. However, if your provider binds the address to MAC address If the hardware is corrupted or uses static IP addressing, a simple reboot may not work. In such cases, cloning the MAC address or contacting technical support may be necessary.
⚠️ Note: Some providers block frequent IP address changes or require PPPoE/L2TP authentication. Check your connection type in your contract before attempting to change your IP address.
In rare cases where a static external IP is required for server setup or video surveillance, it is necessary to order this service from your provider. Assigning a static external address from the global network yourself is impossible, as doing so will result in loss of internet access.
Why doesn't my IP change after reboot?
If your external IP remains the same after rebooting your router, your ISP is likely using Carrier-Grade NAT (CGNAT) technology. In this case, you're behind a shared ISP address, and changing your local IP won't affect your global network address. A separate service is required to obtain a unique, public address.
Configuring a DHCP server and address pool
When changing the IP address of the router itself, it is also important to pay attention to the built-in settings DHCP serversThis service automatically distributes addresses to all connected devices (smartphones, laptops, TVs). The range of distributed addresses (pool) must be in the same subnet as the new gateway address.
For example, if you changed the router address to 192.168.10.1, then the DHCP pool should start, for example, with 192.168.10.10 and end in 192.168.10.254If you leave the old pool settings (for example, 192.168.0.x), connected devices will not be able to receive the correct settings and will not have internet access.
The table below shows examples of correct settings for various addressing schemes:
| Parameter | Standard circuit (Class C) | Alternative scheme 1 | Alternative scheme 2 |
|---|---|---|---|
| Router IP (Gateway) | 192.168.0.1 | 192.168.1.1 | 10.0.0.1 |
| Subnet mask | 255.255.255.0 | 255.255.255.0 | 255.255.255.0 |
| DHCP pool start | 192.168.0.10 | 192.168.1.10 | 10.0.0.10 |
| End of DHCP pool | 192.168.0.254 | 192.168.1.254 | 10.0.0.254 |
Keep in mind that after changing DHCP settings, all devices on the network will lose connection and be forced to request new addresses. This can take anywhere from a few seconds to a couple of minutes, depending on the number of devices on your network.
Resolving access issues after changing IP
Often, after changing settings, users encounter a situation where the internet connection is lost, or the computer displays "No internet access." The first step in diagnosing this is to check the computer's network settings. Make sure the protocol properties IPv4 Automatic address acquisition is required.
If your computer doesn't automatically obtain an address, try resetting the network settings using a command in the command prompt. To do this, launch the console as administrator and enter the command ipconfig /release, and then ipconfig /renewThis will force the network adapter to re-apply to the router for parameters.
In some cases, a full reset of the router to factory settings can help. There's a small button on the device for this purpose. Reset, which you need to hold for 10-15 seconds while the power is on. After this, the router will revert to the factory IP address indicated on the sticker, and you will have to repeat the initial setup procedure.
Frequently Asked Questions (FAQ)
Is it possible to change the IP address without accessing the router settings?
Changing a router's local IP address without accessing its control panel is impossible. However, the external IP address (WAN) often changes automatically when the device reboots if your ISP uses dynamic addressing. To do this, simply unplug the router for 10-15 minutes.
Does changing your IP address affect internet speed?
Changing your IP address itself doesn't affect your physical connection speed. However, if you change your provider or tariff plan to get a new IP address, your speed may change. Changing your IP address can also help if your previous IP address is temporarily banned by a third-party resource.
What should I do if the new IP address conflicts with another device's address?
If you have another device on your network (such as a modem or a second router) with the same address, a conflict will occur. In this case, you'll need to change the address of one of the devices to a unique one. It's recommended to use less common ranges, such as 192.168.50.x or 10.10.10.x.
Do I need to change DNS settings after changing my router IP?
Typically, no; DNS settings are independent of the router's local IP address. However, if you manually entered static DNS servers in the LAN/DHCP settings, make sure they remain correct. By default, the router forwards DNS addresses received from your ISP.
Is it safe to change my router's IP address?
Yes, this is a safe procedure if you understand what you're doing. The only risk is temporarily losing access to your settings if you forget the new address. Always write down the new settings before saving. Changing the address can even improve security by hiding the default gateway address from simple scanning scripts.