We have one Observa Telecom model in our database, the C4R400. It uses 192.168.100.1 as the default IP address, and the default login is blank / admin. Its default settings are below.
How to Log In to the Observa Telecom C4R400
- Connect a computer or phone to the router, with a network cable or over WiFi.
- Type http://192.168.100.1 into your browser's address bar. If nothing loads, see How To Find Your Router's IP Address.
- Sign in with the default username and password from the table below (blank / admin for this model).
Default Observa Telecom IP Address
| Observa Telecom Model | IP Address |
| C4R400 | 192.168.100.1 |
Default Observa Telecom Username and Password
| Observa Telecom Model | Username | Password |
|---|---|---|
| C4R400 | blank | admin |
If the Default Login Doesn't Work
Someone has probably changed the password. Check the label on the router, then factory reset it: with the router on, hold the Reset button (often a pinhole, so use a paperclip) for about 10 to 30 seconds, then let go. That puts back the default login above, and also erases your WiFi and Internet settings. See How To Reset Your Router.
More Than Router Guides
To forward ports on an Observa Telecom router, see our sister site: Observa Telecom port forwarding guides on Portforward.com.