End of Support Notification of TZ 400, TZ 400W, TZ 600, TZ 600P and NSa 3650

Overview 

SonicWall is initiating the End of Support notification for the SonicWall TZ 400, TZ 400W, TZ 600, TZ 600P, and NSa 3650 Firewall Appliance.  

End of Support (EOS) is an announcement to indicate that we will no longer provide technical support, firmware updates/upgrades, or hardware replacement for the product, and that all remaining unique inventory or materials will become unavailable. Post August 1, 2026, we may continue to offer security service subscriptions during the End of Support phase, but we will no longer provide technical support for the product or any security service. 

SonicWall TZ 400, TZ 400W, TZ 600, TZ 600P, and NSa 3650 Firewalls are eligible for upgrade to Gen8 NSa through the SonicWall Secure Upgrade Plus program.  

Please click here for more information on available upgrades.  

Please direct questions and comments to NetSecPM. 

 When will these changes take effect? 

End of support for the SonicWall TZ400, TZ400W, TZ600, TZ600P, and NSa 3650 Firewall Appliance will take effect on August 1, 2026. 

Frequently Asked Questions