How to Reset the TZ-170 to the Factory Defaults

Written by kefa olang
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The TZ-170 by SonicWall is an Internet security appliance that acts as a secure barrier between your private LAN (Local Area Network) and the public Internet WAN (Wide Area Network) to protect your networks from unathorized threats and intrusions on the Internet. If your device is not performing well, resetting it is necessary. Resetting your TZ-170 restores the default settings and firmware to ensure it functions at the highest level.

Skill level:
Moderately Challenging

Things you need

  • SonicWall TZ-170 CD

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  1. 1

    Locate the "Reset" button on the back of your SonicWall TZ-170 Internet security appliance. Using a pointed object such as a toothpick or a pen, press and hold the "Reset" button for 5-10 seconds. Your settings are restored to the factory defaults.

  2. 2

    Reset your firmware if it is corrupted (the test light stays on). To do so, load new firmware on your device and then press the "Power" button to power it down.

  3. 3

    Wait about 30 seconds and, using a pointed object, press and hold the "Reset" button until the "Test" light begins blinking. Release the "Reset" button once the test button stops blinking and remains lit.

  4. 4

    Insert your SonicWall TZ-170 CD into the CD/DVD-ROM drive

  5. 5

    Launch your Web browser and type "" in the Address bar. Press "Enter." Launch the "File Open" dialogue box by clicking "Browse" when you see the following message: "Firmware appears to be corrupted."

  6. 6

    Select your CD in the "File Open" dialogue box and select the rescue version of the firmware to restore it on your device.

  7. 7

    Go to Log into your account and download the latest version of the firmware.

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