Ubiquiti EdgeRouter 4 (ER-4) Login
The Ubiquiti EdgeRouter 4 (ER-4) is a router whose admin page answers on 192.168.1.1. It ships with a fixed factory login, so change it after the first sign-in.
192.168.1.1 Login
Login address: 192.168.1.1
Username / password: ubnt / ubnt
Contents
Ubiquiti EdgeRouter 4 (ER-4) default login
| Model | Login address | Username | Password | Source |
|---|---|---|---|---|
| EdgeRouter 4 (ER-4) | 192.168.1.1 | ubnt | ubnt | Official doc |
Checked against Ubiquiti EdgeRouter ER-4 Quick Start Guide (official) on 31 Aug 2026 (high confidence), via the ssid.ai dataset (CC BY 4.0).
“4-port Gigabit Ethernet router plus one SFP port, EdgeOS on a 1 GHz dual-core CPU with hardware offload, no Wi-Fi.”
How to log in to the Ubiquiti EdgeRouter 4 (ER-4)
- Connect to the Ubiquiti EdgeRouter 4 (ER-4) by Wi-Fi or a network cable. On a phone, turn off mobile data.
- Open a browser and go to 192.168.1.1.
- Sign in with ubnt / ubnt.
- Open the Wireless or Wi-Fi section to change the network name and password.
If the login does not work
- Someone may have changed it. A factory reset restores the login above.
- Reset: Hold the reset button for about 10 seconds until the LED changes, then set the device up again.
- Wrong address? Check your default gateway — see how to find your router’s IP.
- Type
http://, not https://, and turn off any VPN or Private DNS.
Other Ubiquiti models
| Model | Login address | Username | Password | Source |
|---|---|---|---|---|
| AmpliFi Alien | amplifi.lan | — | App only (no web login) | Official doc |
| AmpliFi HD | amplifi.lan | — | App only (no web login) | Official doc |
| EdgeRouter 12 | 192.168.1.1 | ubnt | ubnt | Official doc |
| EdgeRouter 6P (ER-6P) | 192.168.1.1 | ubnt | ubnt | Official doc |
| EdgeRouter Infinity (ER-8-XG) | 192.168.1.1 | ubnt | ubnt | Official doc |
| EdgeRouter Lite (ER-3) | 192.168.1.1 | ubnt | ubnt | Official doc |
| EdgeRouter X (ER-X) | 192.168.1.1 | ubnt | ubnt | Official doc |
| UniFi Dream Machine (UDM) | unifi.ui.com or 192.168.1.1 | — | You set it at setup | Official doc |
| UniFi Dream Machine Pro (UDM-Pro) | unifi.ui.com or 192.168.1.1 | — | You set it at setup | Official doc |
| UniFi Dream Machine SE (UDM-SE) | unifi.ui.com or 192.168.1.1 | — | You set it at setup | Official doc |
| UniFi Dream Router (UDR) | setup.ui.com or 192.168.1.1 | — | App only (no web login) | Official doc |
| UniFi U6 Lite Access Point | App only | — | App only (no web login) | Official doc |
More help
- Ubiquiti (UniFi / EdgeRouter) login guide
- 192.168.1.1 login page
- Default router password list
- How to reset a router
Frequently asked questions
What is the default password for the Ubiquiti EdgeRouter 4 (ER-4)?
Username ubnt, password ubnt.
What is the Ubiquiti EdgeRouter 4 (ER-4) IP address?
The admin page is at 192.168.1.1.
How do I reset the Ubiquiti EdgeRouter 4 (ER-4)?
Hold the reset button for about 10 seconds until the LED changes, then set the device up again.