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Ubiquiti EdgeRouter 4 (ER-4) default password & login IP

The Ubiquiti EdgeRouter 4 (ER-4) default login is ubnt / ubnt at http://192.168.1.1.

For regaining access to a router you own or administer. If you didn't set it up, ask whoever did.
Login address
http://192.168.1.1
Gateway IP
192.168.1.1
Username
ubnt
Password
ubnt

4-port Gigabit Ethernet router plus one SFP port, EdgeOS on a 1 GHz dual-core CPU with hardware offload, no Wi-Fi. Genuine static ubnt/ubnt out of the box; eth0 is preset to a static 192.168.1.1.

Factory reset

With the router running, press and hold the recessed Reset button until the interface LEDs flash and the unit reboots to defaults. Connect to eth0, browse to https://192.168.1.1, enter ubnt/ubnt, and accept the licence agreement.

More Ubiquiti models

Source: Ubiquiti EdgeRouter ER-4 Quick Start Guide (official)verified · updated 2026-09-07

FAQ

What is the default password for the Ubiquiti EdgeRouter 4 (ER-4)?
The Ubiquiti EdgeRouter 4 (ER-4) default login is ubnt / ubnt at http://192.168.1.1.
What is the default login IP for the Ubiquiti EdgeRouter 4 (ER-4)?
The Ubiquiti EdgeRouter 4 (ER-4) default login IP is 192.168.1.1 — open http://192.168.1.1 in a browser on the router's own network.
What is the default username for the Ubiquiti EdgeRouter 4 (ER-4)?
The Ubiquiti EdgeRouter 4 (ER-4) default admin username is ubnt. The matching default password is ubnt.
How do I factory-reset the Ubiquiti EdgeRouter 4 (ER-4)?
With the router running, press and hold the recessed Reset button until the interface LEDs flash and the unit reboots to defaults. Connect to eth0, browse to https://192.168.1.1, enter ubnt/ubnt, and accept the licence agreement.

Verification history (54)

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. 2026-07-14First verified· static
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  2. 2026-07-15Re-verified, unchanged· static
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  3. 2026-07-20Re-verified, unchanged· static
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  4. 2026-07-27Re-verified, unchanged· static
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  5. 2026-07-27Re-verified, unchanged· static
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  6. 2026-07-27Re-verified, unchanged· static
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  7. 2026-07-27Re-verified, unchanged· static
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  8. 2026-07-27Re-verified, unchanged· static
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  9. 2026-07-27Re-verified, unchanged· static
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  10. 2026-07-27Re-verified, unchanged· static
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  11. 2026-07-27Re-verified, unchanged· static
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  12. 2026-07-27Re-verified, unchanged· static
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  13. 2026-07-27Re-verified, unchanged· static
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  14. 2026-07-28Re-verified, unchanged· static
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  15. 2026-07-28Re-verified, unchanged· static
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  16. 2026-07-29Re-verified, unchanged· static
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  17. 2026-07-29Re-verified, unchanged· static
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  18. 2026-07-29Re-verified, unchanged· static
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  19. 2026-07-29Re-verified, unchanged· static
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  20. 2026-07-29Re-verified, unchanged· static
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  21. 2026-07-30Re-verified, unchanged· static
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  22. 2026-07-30Re-verified, unchanged· static
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  23. 2026-07-30Re-verified, unchanged· static
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  24. 2026-07-30Re-verified, unchanged· static
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  25. 2026-07-30Re-verified, unchanged· static
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  26. 2026-07-31Re-verified, unchanged· static
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  27. 2026-08-02Re-verified, unchanged· static
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  28. 2026-08-04Re-verified, unchanged· static
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  29. 2026-08-04Re-verified, unchanged· static
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  30. 2026-08-07Re-verified, unchanged· static
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  31. 2026-08-08Re-verified, unchanged· static
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  32. 2026-08-09Re-verified, unchanged· static
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  33. 2026-08-10Re-verified, unchanged· static
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  34. 2026-08-10Re-verified, unchanged· static
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  35. 2026-08-10Re-verified, unchanged· static
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  36. 2026-08-10Re-verified, unchanged· static
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  37. 2026-08-10Re-verified, unchanged· static
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  38. 2026-08-10Re-verified, unchanged· static
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  39. 2026-08-12Re-verified, unchanged· static
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  40. 2026-08-12Re-verified, unchanged· static
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  41. 2026-08-16Re-verified, unchanged· static
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  42. 2026-08-17Re-verified, unchanged· static
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  43. 2026-08-17Re-verified, unchanged· static
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  44. 2026-08-17Re-verified, unchanged· static
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  45. 2026-08-24Re-verified, unchanged· static
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  46. 2026-08-24Re-verified, unchanged· static
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  47. 2026-08-27Re-verified, unchanged· static
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  48. 2026-08-31Re-verified, unchanged· static
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  49. 2026-08-31Re-verified, unchanged· static
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  50. 2026-09-04Re-verified, unchanged· static
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  51. 2026-09-04Re-verified, unchanged· static
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  52. 2026-09-06Re-verified, unchanged· static
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  53. 2026-09-06Re-verified, unchanged· static
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  54. 2026-09-07Re-verified, unchanged· static
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