Is that for the router ?
If it is Linksys, type admin, no password required. If it is Netgear the it is admin and 1234
You might need to get in to the software. If you have not altered the defaults, this should work.
For the Linksys
start your web browser and jumping into the configuration.
Once your web browser is open, go to the URL http://192.168.1.1/. This will take you to a popup box which asks you to enter a username and password.

Logging in to a LinkSys Router The username is either blank or "admin" and the default password is "admin"
For Netgear.
Type http://192.168.0.1 in the address field of your browser. Enter admin for the user name and password for the password, both in lower case letters
Those are the only two I have in use. You will have to browse to check on any of the other varieties.
Operating System Windows 7 All varieties (64Bit) Now Windows 8
Computer Type Self built
CPU Type and Speed AMD X4 2.8 Ghz
Motherboard Chipset Gigabyte MA74GMT
System Memory Type 4096 MB DDR-3 1333 Mhz
Video Card Type and Speed Radeon HD 5450 1024 MB PCI-E
Hard Drive 320 GB SATA
Anti-virus Software MSE
Computer Skill Level Self-Taught Expert
Favorite Game Pool/snooker Online.