I have this cisco 1721 series router which I run in my small ISP. I have this problem which I will need help if possible. Each time the router restarts I lost my configuration, that is the configuration is not loaded from NVRAM. Besides I have check the config register settings, and it is 0x2102, which means the configuration had to load from nvram under normal circumstances.
This has made me to resort in loading the configuration manually from notepad.
Please I will be greatful for any help.