Version 10.3.3

September 2025

About NetExtender Windows

NetExtender Windows is a transparent software application for Windows users that enables remote users to securely connect to the remote network accessed through a SonicWall appliance. With NetExtender Windows, remote users can securely run any application on the remote network. Users can upload and download files, mount network drives, and access resources as if they were on the local network.

This release supports all the features and contains all the issues resolved in previous NetExtender Windows releases. For more information, see the last release notes on MySonicWall at https://mysonicwall.com.

Compatibility and Installation Notes

• Most popular browsers are supported, but prefers Google Chrome for the real-time graphics display on the Dashboard.
• A MySonicWall account is required.

Supported Platforms

NetExtender Windows Client Versions

The following is a list of NetExtender Windows client versions that are available in this release.

Version	Description
10.3.3	NetExtender for Windows 10 32-bit MSI/EXE
10.3.3	NetExtender for Windows 10/11 64-bit MSI/EXE
10.3.3	NetExtender for Windows 11/10 ARM64-bit

Supported Client Platforms

NetExtender Windows 10.3.3 supports computers running the following versions:

• Windows 10/11.

Supported SonicWall Appliances

SonicWall appliances receive NetExtender Windows connections from remote clients. The following appliances are supported:

• SonicWall firewalls running SonicOS 8 firmware versions, including the following platforms:
  • TZ80, TZ280, TZ380, TZ380W, TZ480, TZ580, TZ680, and NSa2800 NSa3800 NSa4800 NSa5800 running SonicOS 8
• SonicWall firewalls running SonicOS 7 firmware versions, including the following platforms:
  • TZ270, TZ270W, TZ370, TZ370W, TZ470, and TZ470W running SonicOS 7
  • TZ570, TZ570W, TZZ570P, and TZ670 running SonicOS 7
  • NSa2700, NSa3700, NSa4700, NSa5700, and NSa6700 running SonicOS 7
  • NSv270, NSv470, and NSv870 running SonicOS 7
  • NSsp10700, NSsp11700, NSsp13700, and NSsp15700 running SonicOS 7
• SonicWall firewalls running SonicOS 6.5.4.7 firmware version, including the TZ, NSa, SOHO, and SuperMassive (SM) series platforms:
  • TZ300, TZ300W, TZ300P, TZ350, TZ350W, TZ400, TZ400W, TZ500, TZ500W, TZ600, TZ600P
  • NSa2600, NSa3600, NSa4600, NSa5600, and NSa6600
  • NSa2650, NSa3650, NSa4650, NSa5650, NSa6650, NSa9250, NSa9450, and NSa9650
  • SOHOW, SOHO250, and SOHO250W
  • SM9200, SM9250, SM9400, SM9450, SM9600, and SM9650
• SonicWall virtual firewalls running all releases of SonicOS 6.5.4.4v, including the following NSv series platforms:
  • NSv 10, 25, 50, 100, 200, 300, 400, 800, 1600
• SonicWall firewall running all releases of SonicOS 5.9.2.8-11o and 5.9.2.14-13o, including the following platform:
  • SOHO
• Secure Mobile Access (SMA) 100 Series appliances running SMA 10.2.2.1 or higher:
  • SMA210, SMA410
  • SMA500v for ESXi (on ESXi 6.0 onwards)
  • SMA500v for Hyper-V (on Hyper-V 2019 and 2022)
  • SMA500v for AWS
  • SMA500v for Azure
  • SMA500v for KVM

Supported Firewall Firmware Version

NetExtender Windows 10.2.x versions are the only full supported firewall versions at this time. While NetExtender Windows 10.3.x versions are available, they currently have limited support and may not be suitable for all supported firewall versions.

• GEN 5 (SOHO only) - 5.9.2.8-11o / 5.9.2.14-13o
• GEN 6/6.5 - 6.5.4.13-105n / 6.5.4.15-117n
• GEN 7 - 7.0.1-5161 / 7.1.1-7058 / 7.1.2-7019 / 7.1.3-7015
• GEN 8 - 8.0.0-8035 / 8.0.1-8017

SonicWall recommends using the latest GEN 7 and GEN 8 firmware for optimal performance.

Supported Firmware SMA Versions

• SMA 100 10.2.2.1

• SMA 100 10.2.2.2

SonicWall recommends using the latest NetExtender Windows with the latest SMA 100 Series firmware for optimal performance.

What's New

This release provides the latest NetExtender Windows version with the latest version of the SMA 100 Series, fixes for previously reported issues and the new features as follows:

• More tray menus
• Built-in Windows for SAML authentication
• Built in diagnostic tools

Resolved Issues

Issue ID	Issue Description
NX-80	NetExtender tries to reconnect automatically but fails.
NX-82	After replacing the SSL certificate, we get a Connection Error NetExtender.
NX-92	Unable to use user partition on new NetExtender 10.3.x.
NX-131	Certificate-based EPC check fails with NetExtender 10.2.341, but NetExtender 10.3.2 works with SMA100 10.2.2.1.

Known Issues

Not Applicable.

Additional Reference

NX-193, NX-244