I tried to install an IOS image with both ADSL and IPSEC support on a Cisco 1721.
When the router works fine with ADSL, it doesn't work with IPSEC and vice-versa.
I tried to change the router with a similar 1721, but nothing is changed.
I tried the following images (I found them with the IOS Planner) for IPsec:
When I install those IOS versions, I can't see the ATM interface.
Have you notice of any IOS bug related to the ADSL+IPSEC versions with the Cisco 1721?
This is because the ADSL WIC interface card is not supported in the software versions you have tried.
According to "Software Advisor", the WIC-1ADSL card is supported on the 1721 platform in the following releases:
12.2(13)T, 12.2(4)YA, 12.2(4)YB, 12.2(4)YH, 12.2(8)YJ, 12.2(8)YL, 12.2(8)YM, 12.2(8)YN
So, you will need to get a new image, a crypto one of cause.