bizarre, my update is working after months of failure. i am not joking. BUT only automatically. if i try to check for updates manually i receive the same error code and no updates
AND i believe i have the solution for all of these problems...
i needed to restart my modem. as soon as it had restarted, automatic updates worked. i think all who are suffering from this problem should at least give this a try. just unplug your modem, wait 30 seconds then re-plug in your modem or push the restart button. it is worth a try.
paz from mexico