We have Cisco 2801 router and VWIC2-2MFT-T1/E1 card. A year ago with Cisco support I configured this devices working with 2 T1. For long time, I could reboot the router and was no problem. Recently, each time when we reboot the router, the configuration is changed.
For instance, one controller is shutdown and has no ip address and and all ip route are also lost. Therefore, each time I have to configure the router again.
Could you advise me, where is the problem, the router or card or something else?