Next-generation firewall · TZ400W
TZ400W
SonicWall TZ400 — SonicWall TZ400W next-generation firewall
ENDING SOON
1 mo
until end of service life
Lifecycle position
now
availableend of saleservice
Options from here
Schedule migration
Support ends soon — set the replacement window now, not mid-outage.
Line up third-party maintenance
Bridge coverage past the OEM cutoff if you can't migrate in time.
Budget the refresh
Get the replacement into this planning cycle.
Pre-stock spares
Secure spares before they get scarce after end-of-sale.
Other SKUs in TZ400
TZ400W — questions
Is the SonicWall TZ400W still supported?
Yes, for now. SonicWall's last date of support for TZ400W is Aug 2026 (per the SonicWall end-of-sale bulletin).
When did the TZ400W reach end of sale?
TZ400W reached end of sale Jul 2021, per the SonicWall end-of-sale bulletin.
What is the last date of support (EOSL) for the TZ400W?
Aug 2026 — per the SonicWall end-of-sale bulletin.
Can the TZ400W be maintained after SonicWall support ends?
After the last date of support, TZ400W units can often be kept in production through third-party maintenance providers. SonicWall no longer issues software fixes, support, or hardware replacement for it.