How to Update Router Firmware Without Losing Your Settings

By Katia Belokon

Quick Answer

Learning how to update router firmware is essential for maintaining network security and privacy. Router firmware updates patch vulnerabilities, improve performance, and close security gaps that could expose your network traffic. The process typically involves logging into your router’s admin interface, checking for available updates, and applying them—but the exact steps vary by manufacturer. This guide walks through the complete process, explains why firmware updates matter for privacy, and shows you how to verify the update worked correctly.

Before you begin, understand that knowing how to update router firmware is only one part of network security. Updates protect the routing layer, but they don’t automatically hide your browsing activity from websites, prevent account tracking, or change how apps identify your device. Use MyIPScan to check your public IP address and network configuration before and after the update to confirm the router is functioning as expected.

Why Router Firmware Updates Matter for Privacy

Router firmware is the low-level software that controls how your router handles network traffic, manages connections, and enforces security protocols. Outdated firmware can contain exploitable vulnerabilities that allow attackers to intercept traffic, redirect DNS queries, or gain unauthorized access to your network. According to NIST Guidelines for Securing Wireless Local Area Networks, keeping wireless infrastructure updated is a fundamental security control that reduces exposure to known attack vectors.

When firmware is outdated, several privacy risks emerge. Older encryption protocols may remain enabled by default, DNS handling may be insecure, and known exploits can allow third parties to monitor or manipulate traffic passing through the router. Firmware updates address these issues by patching vulnerabilities, updating security protocols, and improving how the router handles authentication and encryption.

Updates also improve how routers handle modern privacy features. Newer firmware versions often add support for DNS-over-HTTPS, WPA3 encryption, better firewall rules, and more granular control over network traffic. These features help reduce the visibility of your network activity to ISPs and other observers, though they don’t eliminate all tracking signals.

Before You Update: Preparation Steps

Back Up Current Router Settings

Before learning how to update router firmware, back up your current configuration. Most router admin interfaces include a backup or export option under settings or administration. Download the configuration file and save it somewhere safe. If the update fails or resets settings, you can restore the backup instead of manually reconfiguring every option.

The backup file typically contains Wi-Fi network names, passwords, port forwarding rules, DHCP reservations, DNS settings, and firewall configurations. Without a backup, a failed update can mean hours of reconfiguration work.

Check Your Current Firmware Version

Log into your router’s admin interface to find the current firmware version. The login address is usually printed on a label on the router itself—common addresses include 192.168.1.1, 192.168.0.1, or 10.0.0.1. Enter the address in a web browser, then log in using the admin credentials. If you’ve never changed the default password, check the router label or the manufacturer’s documentation.

Once logged in, look for a section labeled “Firmware,” “Router Update,” “Administration,” or “System.” The current firmware version is usually displayed as a version number and date. Write this down so you can confirm the update was successful later.

Verify Network Stability

Use a wired Ethernet connection when updating firmware. Wireless connections can drop during the update process, which may corrupt the firmware and brick the router. If you must use Wi-Fi, ensure the signal is strong and stable, and avoid starting the update during peak usage times when interference is more likely.

Close unnecessary applications, pause large downloads, and disconnect devices that aren’t needed during the update. The router may reboot multiple times, and active connections can interfere with the process.

How to Update Router Firmware: Step-by-Step Process

Method 1: Automatic Update Through Admin Interface

Most modern routers support automatic firmware checks. This is the simplest method and reduces the risk of downloading the wrong file or corrupting the update.

1. Log into the router admin interface using the IP address and credentials.
2. Navigate to the firmware or update section. Common menu paths include “Advanced > Administration > Firmware Update,” “Settings > System > Router Update,” or “Administration > Firmware Upgrade.”
3. Click “Check for Updates” or a similar button. The router will contact the manufacturer’s server to see if a newer version is available.
4. If an update is available, review the version number and release notes. Release notes explain what the update fixes and whether it addresses security vulnerabilities.
5. Click “Update” or “Install.” The router will download the firmware, verify the file, and begin the installation process.
6. Wait for the update to complete. Do not power off the router or disconnect from the network. The router will reboot automatically when finished.
7. Log back into the admin interface and verify the new firmware version matches the update you installed.

This method works well for routers from major manufacturers like NETGEAR, TP-Link, ASUS, and Linksys. If the automatic check fails or shows no updates available, use the manual method instead.

Method 2: Manual Firmware Download and Installation

If automatic updates aren’t available or you prefer more control, download the firmware file manually from the manufacturer’s website.

1. Identify your router’s exact model number. This is usually printed on a label on the bottom or back of the device. Include the hardware version if listed—some models have multiple hardware revisions that require different firmware files.
2. Visit the manufacturer’s support website and search for your model number. Navigate to the downloads or firmware section.
3. Download the latest firmware file. The file is typically a .bin, .img, or .chk file. Verify the file size and checksum if provided to ensure the download wasn’t corrupted.
4. Log into the router admin interface and navigate to the firmware update section.
5. Select “Manual Update,” “Browse,” or “Choose File,” then locate the downloaded firmware file on your computer.
6. Click “Upload” or “Update.” The router will verify the file, then begin the installation process.
7. Wait for the installation to complete and the router to reboot. This can take several minutes. Do not interrupt the process.
8. Log back in and confirm the new firmware version is active.

Manual updates give you more control and allow you to install specific versions if needed. However, downloading the wrong file for your hardware version can brick the router, so double-check the model and hardware revision before proceeding.

Method 3: Mobile App Update

Many manufacturers offer mobile apps that simplify firmware updates. Apps like TP-Link Tether, NETGEAR Nighthawk, ASUS Router, and Linksys Smart Wi-Fi allow you to manage the router from a smartphone.

1. Download the manufacturer’s app from the App Store or Google Play.
2. Connect your phone to the router’s Wi-Fi network.
3. Open the app and log in using your router credentials.
4. Navigate to the settings or tools section and look for “Firmware Update” or “Router Update.”
5. Tap “Check for Updates.” If an update is available, tap “Install” or “Update.”
6. Wait for the update to complete. The router will reboot automatically.
7. Open the app again and verify the new firmware version.

Mobile apps are convenient but may not support all router models or advanced features. If the app doesn’t show an update option, use the web-based admin interface instead.

Verifying the Firmware Update

After the update completes, verify that the new firmware is active and the router is functioning correctly. Log into the admin interface and check the firmware version number. It should match the version you installed. If the version number hasn’t changed, the update may have failed, or the router may have rolled back to the previous version due to an error.

Test basic network functionality by opening a few websites, running a speed test, and confirming that all devices can connect to Wi-Fi. Check your public IP address and DNS behavior using MyIPScan to ensure the router is routing traffic correctly. If you notice unexpected changes in your public IP, DNS resolver, or network behavior, review the router’s settings to confirm the update didn’t reset important configurations.

If you configured custom DNS servers, port forwarding rules, or firewall settings, verify they’re still active. Some firmware updates reset settings to defaults, which can break custom configurations and expose services you intended to keep private.

Common Firmware Update Issues and Solutions

Update Fails or Router Becomes Unresponsive

If the update process freezes or the router stops responding, wait at least a short test window before taking action. Firmware updates can appear to stall during verification or installation phases. If the router remains unresponsive after a short test window, try a power cycle: unplug the router, wait a brief wait, then plug it back in.

If the router still won’t boot, it may have entered recovery mode or become bricked. Check the manufacturer’s support documentation for recovery procedures. Many routers support TFTP recovery, which allows you to reinstall firmware using a special boot mode and a TFTP client on your computer.

Settings Reset to Defaults After Update

Some firmware updates reset all settings to factory defaults. If this happens, restore your backup configuration file through the admin interface. If you didn’t create a backup, you’ll need to manually reconfigure Wi-Fi networks, passwords, DNS settings, and any custom rules.

To avoid this issue in the future, always back up settings before updating and check the release notes to see if the update is known to reset configurations.

Network Performance Degrades After Update

Occasionally, a firmware update introduces bugs or changes default settings in ways that reduce performance. If you notice slower speeds, increased latency, or connection drops after updating, check the router’s settings for changes to QoS, traffic shaping, or wireless channel selection.

If the problem persists, check the manufacturer’s support forums to see if other users are reporting similar issues. You may need to roll back to the previous firmware version or wait for a patch release that fixes the problem.

DNS or Privacy Settings Change Unexpectedly

Firmware updates can reset DNS settings to the router’s defaults, which may use your ISP’s DNS servers instead of privacy-focused alternatives. After updating, verify your DNS configuration and re-apply custom DNS servers if needed. Use a DNS leak test to confirm your DNS queries are being handled as expected.

If you rely on DNS-over-HTTPS, DNS-over-TLS, or other privacy enhancing DNS features, check that these settings are still enabled after the update. Some firmware versions change how these features are configured or disable them by default.

Manufacturer-Specific Update Procedures

Manufacturer	Default Admin Address	Update Location in Interface	Automatic Update Support
NETGEAR	192.168.1.1 or routerlogin.net	Advanced > Administration > Firmware Update	Yes
TP-Link	192.168.0.1 or tplinkwifi.net	Advanced > System Tools > Firmware Upgrade	Yes
ASUS	192.168.1.1 or router.asus.com	Administration > Firmware Upgrade	Yes
Linksys	192.168.1.1 or myrouter.local	Connectivity > Router Firmware Update	Yes
D-Link	192.168.0.1	Management > Firmware Update	Varies by model
Ubiquiti	unifi.ui.com or device IP	Settings > System > Update	Yes (via controller)

Each manufacturer uses slightly different terminology and menu structures, but the general process remains similar. If you can’t find the firmware update option, consult the router’s user manual or the manufacturer’s online support documentation.

Security Considerations After Updating

Updating firmware is an important security step, but it doesn’t address all privacy and security risks. After updating, review the following settings to ensure your router is configured securely:

• Change default admin credentials: If you’re still using the default username and password, change them immediately. Default credentials are publicly documented and make it trivial for attackers to access your router.
• Disable WPS: Wi-Fi Protected Setup is convenient but introduces security vulnerabilities. Disable it unless you have a specific need for the feature.
• Enable WPA3 encryption: If your router and devices support WPA3, enable it for stronger wireless security. If WPA3 isn’t available, use WPA2 with AES encryption.
• Review firewall settings: Ensure the router’s firewall is enabled and configured to block unsolicited inbound connections.
• Disable remote management: Unless you need to access the router from outside your network, disable remote management to reduce attack surface.
• Check for open ports: Review port forwarding rules and close any ports that aren’t actively needed.
• Enable automatic updates: If your router supports automatic firmware updates, enable the feature so future security patches are applied without manual intervention.

These settings work together with firmware updates to reduce the risk of unauthorized access and traffic interception. No single setting provides complete protection, but layered controls make attacks significantly more difficult.

How Firmware Updates Affect Network Privacy

Firmware updates can improve privacy by patching vulnerabilities that allow traffic interception, but they don’t hide your activity from websites, apps, or your ISP. The router handles network-layer routing and encryption, but it doesn’t control application-layer signals like cookies, account logins, or device fingerprints.

After updating firmware, your public IP address, DNS resolver, and network routing behavior should remain consistent unless the update changed default settings. Use MyIPScan to check your public IP address and compare it to the result before the update. If the IP address changed unexpectedly, the update may have reset your network configuration or changed how the router handles WAN connections.

Firmware updates can also affect DNS privacy. Newer firmware versions may add support for encrypted DNS protocols like DNS-over-HTTPS or DNS-over-TLS, which prevent your ISP from seeing which domains you’re querying. However, these features are often disabled by default, so you’ll need to enable them manually after updating.

Remember that firmware updates protect the router itself, not the devices connected to it. Browsers, apps, and operating systems can still leak identifying information through account logins, cookies, browser fingerprints, and telemetry. Treat router security as one layer in a broader privacy strategy, not as a complete solution.

When to Update Router Firmware

Update router firmware whenever the manufacturer releases a security patch or when you notice performance issues that a firmware update might resolve. Security updates are the highest priority—they address vulnerabilities that could allow attackers to compromise your network or intercept traffic.

Check for firmware updates at least once every three months, or enable automatic updates if your router supports the feature. Some manufacturers release updates frequently, while others update only when critical vulnerabilities are discovered. If your router is more than five years old and no longer receives firmware updates, consider replacing it with a newer model that’s still supported.

Avoid updating firmware immediately before important work or during times when network downtime would be disruptive. Updates can take 10 to a short setup window and may require multiple reboots. Plan updates during low-usage periods and ensure you have time to troubleshoot if something goes wrong.

Alternative Firmware Options

If your router manufacturer no longer provides firmware updates or you want more control over router features, consider third-party firmware like DD-WRT, OpenWrt, or Tomato. These open-source firmware projects offer advanced features, longer support lifecycles, and more granular control over network behavior.

Third-party firmware can add support for VPN clients, advanced firewall rules, traffic monitoring, custom DNS configurations, and other privacy enhancing features. However, installing third-party firmware requires technical knowledge and can void your router’s warranty. If the installation fails, you may brick the router and render it unusable.

Before installing third-party firmware, verify that your router model is supported and that you understand the installation process. Read the documentation carefully, back up your current settings, and be prepared to recover the router if something goes wrong. Third-party firmware is a powerful option for advanced users, but it’s not necessary for most people who simply want to keep their router secure and up to date.

Firmware Update Checklist

Use this checklist to ensure you complete all necessary steps when updating router firmware:

• Back up current router configuration
• Record current firmware version number
• Connect to router via wired Ethernet if possible
• Close unnecessary applications and pause large downloads
• Log into router admin interface
• Check for available firmware updates
• Review release notes for security fixes and known issues
• Download firmware file manually if automatic update isn’t available
• Verify firmware file matches router model and hardware version
• Install firmware update and wait for router to reboot
• Verify new firmware version is active
• Test network connectivity and basic functionality
• Check public IP address and DNS behavior using MyIPScan
• Restore custom settings if update reset configuration
• Review security settings and re-enable privacy features if needed
• Change default admin password if still using factory credentials

FAQ

How often should I update my router firmware?

Check for firmware updates at least once every three months, or enable automatic updates if your router supports the feature. Update immediately when the manufacturer releases a security patch that addresses critical vulnerabilities. If your router is more than five years old and no longer receives updates, consider replacing it with a newer model that’s still supported by the manufacturer.

Will updating router firmware change my public IP address?

Updating firmware typically does not change your public IP address unless the update resets your network configuration or changes how the router handles WAN connections. Your public IP address is assigned by your ISP and usually remains stable unless you reboot the modem, change ISP settings, or the ISP reassigns addresses. After updating, use MyIPScan to verify your public IP address matches the expected result for your connection type.

Can I update router firmware without internet access?

Yes, you can update router firmware without internet access by downloading the firmware file on another device, transferring it to a computer connected to the router, and using the manual update method. However, you won’t be able to use automatic update checks, and you’ll need to verify the firmware file is correct for your router model before installing it. This method is useful when the router’s internet connection is broken or when you need to update firmware in an isolated network.

What happens if the firmware update fails?

If a firmware update fails, the router may become unresponsive or enter recovery mode. Wait at least a short test window before taking action, as some updates appear to stall during verification. If the router remains unresponsive, try a power cycle by unplugging it for a brief wait. If the router still won’t boot, consult the manufacturer’s support documentation for recovery procedures. Many routers support TFTP recovery, which allows you to reinstall firmware using a special boot mode.

Do firmware updates improve router speed?

Firmware updates can improve router performance by fixing bugs, optimizing traffic handling, and updating wireless drivers. However, updates don’t increase the maximum speed supported by the router’s hardware. If you’re experiencing slow speeds, a firmware update may help if the issue is caused by software bugs or inefficient traffic management. After updating, test your connection speed to see if performance improved.

Should I update firmware on a router provided by my ISP?

ISP-provided routers are usually managed by the ISP, and firmware updates are often applied automatically. Check with your ISP before manually updating firmware on their equipment, as unauthorized updates may violate the terms of service or cause compatibility issues with the ISP’s network. If you want more control over firmware updates and router settings, consider using your own router instead of the ISP-provided device.