I have a 2801 Router with IOS ver: Cisco IOS Software, 2801 Software (C2801-SPSERVICESK9-M), Version 12.4(3d), RELEASE SOFTWARE (fc3). I want to use a WIC-1SHDSL_V3 but it doesn't work in slots 1, 2 and 3. The led status on card is always off. Is the...

I had configured a 1801 and 1750 series router with a line aux 0 for dial-up backup with a speed of 115200, but every time I type the show running config command these line changes to whatever value.Could you tell why?