- Changing the router's default admin password is one of the most important security steps.
- WPA3 is the latest WiFi security standard, with WPA2 still common and far stronger than older, outdated options.
- Keeping router firmware up to date closes known security weaknesses.
- A guest WiFi network keeps visitor devices separate from the main home network.
- Disabling remote management and reviewing UPnP reduces the ways a router can be reached from outside.
Secure a home router by changing the default admin password, using WPA3 or WPA2 encryption, keeping firmware updated, enabling a guest network, and disabling remote management and unnecessary features.
Last reviewed: June 2026
Why router security matters
The router is the gateway between every device in a home and the internet, which makes it a central point for security. A poorly secured router can allow unauthorised access to the home network, expose connected devices, or be misused by others. Fortunately, securing a router does not require technical expertise: a handful of straightforward steps dramatically reduce the risk. Treating the router as something to set up properly once, and check occasionally, is the foundation of a secure home network.
Most routers ship with reasonable default settings, but defaults are not tailored to each home and some leave room for improvement. Working through the basics ensures the connection is protected without needing specialist knowledge.
Change the default admin password
One of the single most important steps is to change the router's administrator password, the credential used to log in and change its settings. Many routers come with a default admin password, and where this is weak or widely known, it is a clear vulnerability. Setting a strong, unique admin password prevents others from accessing the router's controls. This is distinct from the WiFi password, which connects devices to the network; both should be strong, and neither should be left at an obvious default. Recording the new passwords somewhere safe avoids being locked out later.
| Step | What it does | Priority |
|---|---|---|
| Change admin password | Stops others changing router settings | High |
| Use WPA3 or WPA2 | Encrypts the wireless network | High |
| Update firmware | Closes known security weaknesses | High |
| Enable guest network | Separates visitor and untrusted devices | Medium |
| Disable remote management | Limits access from outside the home | Medium |
| Review UPnP and ports | Keeps open only what is needed | Medium |
Use strong WiFi encryption
WiFi encryption protects the wireless connection so that others cannot easily read the traffic or join the network. WPA3 is the latest standard and offers the strongest protection, while WPA2 remains common and is still considered strong for most homes. Older standards such as WEP and the original WPA are outdated and should not be used, as they can be broken easily. Where a router and its devices support WPA3, using it is preferable; where some devices only support WPA2, many routers offer a mixed mode. Choosing the strongest option the devices support keeps the wireless network secure.
Keep firmware updated
Router firmware is the software that runs the device, and updates often fix security weaknesses as well as improving performance. An out-of-date router can carry known vulnerabilities that updates would close. Many modern routers update automatically, which is the simplest approach, while others require the update to be triggered manually through the settings. Checking that automatic updates are enabled, or periodically checking for updates, ensures the router has the latest protections. Provider-supplied routers are often updated by the provider, but it is still worth confirming.
Set up a guest network
A guest WiFi network is a separate network for visitors and, often, for less trusted devices such as some smart home gadgets. It lets guests connect to the internet without giving them access to the main home network and the devices on it. This separation limits what a compromised or untrusted device can reach. Most modern routers make creating a guest network straightforward, with its own name and password. Using one is a simple way to keep the main network, with its computers and personal devices, isolated from casual visitors and lower-trust equipment.
Disable remote management
Remote management allows a router's settings to be accessed from outside the home network, over the internet. While occasionally useful, it also creates a way for the router to be reached remotely, which increases the risk if credentials are weak. Unless there is a specific need for it, disabling remote management closes this avenue and limits administration to within the home. Where a provider manages the router and needs some remote access for support, that is a controlled arrangement; the setting to review is general remote administration that is not required.
Review UPnP and open features
UPnP, or Universal Plug and Play, is a feature that lets devices automatically open connections through the router, which is convenient for some games and applications but can also open the network in ways that are hard to see. For households that value security, reviewing whether UPnP is needed, and disabling it if not, reduces the network's exposure, though some devices and games rely on it. Similarly, any port forwarding rules that are no longer needed should be removed. The principle is to keep open only what is actually required, since every open feature is a potential way in.
Other sensible steps
A few further habits strengthen router security. Changing the default WiFi network name does not need to reveal the make or model of the router, which can hint at known weaknesses. Restarting the router occasionally and reviewing the list of connected devices helps spot anything unfamiliar. Where the router supports it, keeping a record of which devices should be connected makes unexpected ones easier to notice. None of these steps is complicated, and together they build a layered approach that makes the home network considerably harder to misuse.
Keeping security simple and current
Good router security is mostly about getting the basics right and revisiting them occasionally rather than constant effort. Strong, unique passwords, current firmware, modern encryption, a guest network and disabling features that are not needed cover the great majority of the risk. Reviewing these settings when a new router is installed, and once in a while thereafter, keeps the home network protected as devices and threats change. The aim is a secure setup that runs quietly in the background, protecting every device that depends on the connection.
Frequently Asked Questions
What is WPA3?
WPA3 is the latest WiFi security standard and offers the strongest protection for a wireless network. WPA2 remains common and is still considered strong for most homes, while older standards such as WEP and the original WPA are outdated and should not be used. Using the strongest option the router and devices support keeps the network secure.
How do I change my router's admin password?
Log in to the router's settings, usually through a web address or app provided in the documentation, using the current admin credentials, then find the option to change the administrator password. Set a strong, unique password distinct from the WiFi password, and record it somewhere safe to avoid being locked out later.
What is UPnP and should I turn it off?
UPnP, or Universal Plug and Play, lets devices automatically open connections through the router, which is convenient for some games and applications but can open the network in ways that are hard to see. Households that value security may review whether it is needed and disable it if not, though some devices and games rely on it.
How often should I update router firmware?
Firmware should be kept current, as updates fix security weaknesses and improve performance. Many modern routers update automatically, which is simplest, while others need manual updates through the settings. Checking that automatic updates are enabled, or periodically checking manually, ensures the router has the latest protections.
What is a guest WiFi network?
A guest network is a separate WiFi network for visitors and less trusted devices, with its own name and password. It lets guests reach the internet without access to the main home network and its devices, limiting what a compromised or untrusted device can reach. Most modern routers make setting one up straightforward.
Should I disable remote management on my router?
Unless there is a specific need for it, disabling remote management is sensible, as it closes the ability to access the router's settings from outside the home and reduces risk. Where a provider manages the router and needs controlled remote access for support, that is a separate, managed arrangement.
