I was given a 1921/K9 router that came from an office whose T1 lines were decommissioned. It may have belonged to the ISP, but there is no identification or asset sticker to tell me for sure. The ISP did not ask for it back in the years since we migrated. I've restored it to factory defaults and have been using it to help me with my Cisco Network Academy classes. When I try to download the latest software updates, I am told I need a service contract. I have not been able to find a way to get a service contract for this device. Can someone point me in the right direction? I don't need any service or support, really, I just want to be able to install the latest updates.