The routing software (also called firmware) of the NETGEAR WNDR3700 router is stored in flash memory,and can be upgraded as NETGEAR releases new software. Your router can download and install the new software, or you can download upgrade files from the NETGEAR website and manually send the upgrade file to the router using your browser.
Tip: To ensure that you are always using the latest router firmware, enable the Firmware Upgrade Assistant feature so that the router will automatically detect a new version of the firmware on the Internet and alert you to its availability.
The Checking for Firmware Updates screen appears at login unless you clear the Check for Updated Firmware Upon Log-in check box.

A screen is also provided for upgrading the router. From the main menu, under Maintenance, select Router Upgrade to display the Router Upgrade screen.

From this screen, you can check for new software versions by clicking the Check button. If a new version is found, you can download and install it in one step. To enable the Smart Wizard to automatically check for a new software version upon login, select the Check for New Version Upon Log-in check box.
Alternatively, you can manually install an upgrade file stored on your computer.
Tip: Before upgrading the router software, use the router Settings Backup screen to save your configuration settings. A router upgrade might cause the router settings to revert to the factory defaults. If this happens, after completing the upgrade, you can restore your settings from the backup.
Upgrading Automatically to New Router Software
If you have selected Check for New Version Upon Log-in, your router alerts you to the new software when you log in. Otherwise, you can click the Check button in the Router Upgrade screen to search for new software.
If the router discovers a newer version of software, the message on the left displays when you log in. If no new firmware is available, the message on the right displays.


To automatically upgrade to the new software, click Yes to allow the router to download and install the new software file from NETGEAR.
When the upload is complete, your router automatically restarts. The upgrade process typically takes about three minutes. Read the new software release notes to determine whether you must reconfigure the router after upgrading.
Upgrading Manually to New Router Software
To manually select, download, and install new software to your router:
1. Under Maintenance on the main menu, select Router Status. Note the version number of your router firmware.
2. Go to the WNDR3700 support page on the NETGEAR website at http://www.netgear.com/support.
3. Check the most recent firmware version offered against the firmware version shown in the Router Status screen.
4. If the version on the NETGEAR website is more recent, download the file to your computer.
5. Under Maintenance on the main menu, select Router Upgrade.
6. Click Browse, and locate the firmware image that you downloaded to your PC (the file ends in.img or .chk).
7. Click Upload to send the firmware to the router.
Warning: When uploading software to the WNDR3700 router, do not interrupt the Web browser by closing the window, clicking a link, or loading a new page. If the browser is interrupted, it could corrupt the software.
When the upload is complete, your router automatically restarts. The upgrade process typically takes about three minutes. Read the new software release notes to determine whether you must reconfigure the router after upgrading.
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Tags: Firmware, WNDR3700