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WatchGuard Firebox T20 / T20-W default password & login IP

The WatchGuard Firebox T20 / T20-W default login is admin / readwrite at http://10.0.1.1.

For regaining access to a router you own or administer. If you didn't set it up, ask whoever did.
Login address
http://https://10.0.1.1:8080
Gateway IP
10.0.1.1
Username
admin
Password
readwrite

WatchGuard's first row in the dataset — desktop small-business UTM firewall/VPN appliance (HW models FS2AE5/FS2AE5W), entry point of the Firebox T-Series line. Official Quick Start Guide states: "Log in with the user name admin and the passphrase readwrite." Device auto-assigns on the 10.0.1.0/24 network and is reached at https://10.0.1.1:8080 with a self-signed cert.

Factory reset

Factory-reset via the unit's recessed reset button restores the admin/readwrite and status/readonly defaults; see WatchGuard's official 'About Factory-Default Settings' Fireware documentation for the full procedure before reconfiguring.

More WatchGuard models

Source: WatchGuard — Firebox T20/T20-W Quick Start Guide (official PDF)verified · updated 2026-09-21

FAQ

What is the default password for the WatchGuard Firebox T20 / T20-W?
The WatchGuard Firebox T20 / T20-W default login is admin / readwrite at http://10.0.1.1.
What is the default login IP for the WatchGuard Firebox T20 / T20-W?
The WatchGuard Firebox T20 / T20-W default login IP is 10.0.1.1 — open http://10.0.1.1 in a browser on the router's own network.
What is the default username for the WatchGuard Firebox T20 / T20-W?
The WatchGuard Firebox T20 / T20-W default admin username is admin. The matching default password is readwrite.
How do I factory-reset the WatchGuard Firebox T20 / T20-W?
Factory-reset via the unit's recessed reset button restores the admin/readwrite and status/readonly defaults; see WatchGuard's official 'About Factory-Default Settings' Fireware documentation for the full procedure before reconfiguring.

Verification history (1)

Every time we've checked this model's default credentials, oldest first — including when nothing changed. Absence of change over time is itself the evidence.

  1. 2026-09-21First verified· static
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