I got a question about my Router C2901.
The IOS Version on it is from 2010 and i was looking for a current one and found the 15.7.3M5.
But i can't download it, without a service contract, so i go to the page for request and enter the SN from the router.
But always comes a error, error error error without any context.
So is there no way to update the IOS on the router ?