I tried to auto update, it connects but does not complete the download, i see that it creates a file on the repository but then its auto deleted
and the memory gets almost full on the router....
I also tried uploading it manually to the router it copies the file but i dont have an option to upgrade it...

After you manually upload, simply do .

If it is just deleting the package after the reboot, check to see if there is a firmware update (System>Routerboard) and then try again.