How to Reset a Cisco 2900 Router - Computers - Hardware

Cisco 2900 Series Integrated Services Routers (ISR), designed to power the next phase of branch-office evolution, offers unparalleled total cost of ownership savings and network agility through the intelligent integration of security, wireless, and application services.

As a popular Cisco router item, Cisco 2900 series offers an upgradable motherboard which allows owners to update hardware as more powerful options become available without having to purchase a new router. Cisco also appeals to environmentally conscious consumers with their EngeryWise dual power supplies, which lower electricity costs and support essential redundancy requirements. It is occasionally necessary to reset this powerful networking device, restoring it to factory default settings.

To reset a Cisco 2900 router, e.g. Cisco 3925, Cisco 3945, some Cisco 2900 users have discussed it like that:About "3945 router password recovery"Question: "Hi There,I understand that the password has to be changed the first time we login to Cisco 3945 router but i failed to do that and it's not allowing me to connect using default username/password. Can someone help me in getting this addressed??" ---From vnirmal112

Answers from others"You can but you don't have to change the password the first time you login to the 2900. Are you trying to connect using the console port or telnet?"

"Logged onto router via console...was about to configure a new router...I got a clear message saying that i cannot login next time if i don't change password, which i saw after logging off only :-(..."

"I am running 12.4.24.If you haveanother flash card, you can put a different IOS on it and boot it with that and see if you can get in.The other thing you can do is to try the password recovery and see if you can get in that way. Did you ever assign any passwords to it?"

Also frustrated with this Cisco 2900 resetting? Instructions help you reset Cisco 2900 series in detailMethod One1. Enter "config-register 0x2102" from the router's command prompt window. This gives you access to global configuration mode.2. Enter "show version." The response should read:router# configure terminalrouter (config) #config-register 0x2102router (config)