Hi everybody, I want to ask if I can run an adsl2+ service with a cisco 1721 router and a WIC-1ADSL card. If no, is there any solution or another card ? Maybe and IOS upgrade ? Thank you.
There is no solution.
WIC-1ADSL does not support ADSL2 neither ADSL2+, and the card that does, HWIC-1ADSL is not supported on the 1721.
Hope this helps, please rate post if it does!