We have 3 Pentagram models in our database: the Cerberus, Cerberus P 6351 and P6311-07A. Most of them use 192.168.1.100 as the default IP address, and the default login is admin / admin. This page has the default IP address and login for each model we know of.
How to Log In to a Pentagram Router
- Connect a computer or phone to the router, with a network cable or over WiFi.
- Type http://192.168.1.100 into your browser's address bar. If nothing loads, try the other addresses in the table below.
- Sign in with the default username and password from the table below (admin / admin is the most common).
Default Pentagram IP Addresses
| Pentagram Model | IP Address |
| Cerberus | 192.168.1.1 |
| Cerberus P 6351 | 192.168.1.100 |
| P6311-07A | 192.168.1.100 |
Default Pentagram Username and Password
| Pentagram Model | Username | Password |
|---|---|---|
| Cerberus | admin | admin |
| Cerberus P 6351 | admin | pentagram |
Other logins we have seen on Pentagram models: admin / pentagram.
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 a Pentagram router, see our sister site: Pentagram port forwarding guides on Portforward.com.
Pentagram Models We Cover
Cerberus, Cerberus P 6351, P6311-07A