Zyxel USG40 — Default Password
Default username and password for the Zyxel USG40: admin / 1234. Learn how to log in at 192.168.1.1 and how to change the default credentials.
Unified Security Gateway. Default credentials apply after factory reset. Devices managed by Zyxel Nebula cloud may use Nebula-assigned credentials instead.
| Username | Password | Access | Notes |
|---|---|---|---|
admin | 1234 | Web UI | — |
- Default IP
- 192.168.1.1
- Source
- vendor manual
Responsible use
This database lists publicly documented default credentials so administrators can find and change them. Only use these on systems you own or are authorized to test.