SonicWall TZ300 — End-of-Life & EOSL Dates
SonicWall TZ300 next-generation firewall. Published last-order-day (end-of-sale) and end-of-support (EOSL) dates from SonicWall's public Product Life Cycle Tables, linked for verification.
Support summary
Past end of serviceEvery tracked SonicWall TZ300 SKU group is past SonicWall end of service life (last group Apr 2026). Units in production should be treated as unsupported. For past-EOSL units, weigh third-party maintenance, spares, replacement, or a documented run-to-failure.
Why this score
- Past end of service life — 18 months ago
- Vendor-published date, source-linked
- Category: next-generation firewall
The score reflects support-lifecycle timing and source confidence only — it is not a risk, safety or compliance rating. How it’s calculated →
TZ300 / TZ300W
EOSL — PASTTZ300P
EOSL — PAST1 SKU in this group
Options from here
Unsupported nowThe SonicWall TZ300 is past SonicWall end of service life. These are the paths teams take from here:
Keep it in production past the OEM cutoff with an independent maintainer.
Buy spares now, while units still circulate on the secondary market.
It is unsupported today — set a migration timeline and budget.
Low-criticality role — document the risk, harden backups, retire on your terms.
Independent and informational — EOSL.ai sells no hardware or maintenance and lists no paid placements. Third-party maintenance keeps unsupported gear in production past the OEM cutoff; whether it fits depends on the asset's role.
SonicWall TZ300 — questions
Is the SonicWall TZ300 end of life?
Yes — every tracked TZ300 SKU group is past its last date of support.
What is the last date of support for the TZ300?
Last dates of support across TZ300 SKU groups range from Jan 2025 to Apr 2026.
Where do these TZ300 dates come from?
Every end-of-sale and end-of-service-life date on this page links to the official SonicWall end-of-sale bulletin it was taken from.
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