NAS326 Print server after update to V5.21(AAZF.11)C0

MRisco

My NAS326 was updated to the latest firmware (V5.21(AAZF.11)C0), now I can´t use the print server. I saw in the change log that CUPS was removed. How can I re-enable the print server? 

ikubuf

I think the CUPS has been removed from the NAS package. 
The printer service will not be available on the latest firmware.
There is a way to recover the service is to downgrade the NAS firmware.
You can refer to this article to downgrade the NAS firmware.
https://community.zyxel.com/en/discussion/5948/nas326-firmware-upgrade/p2

Here are the steps to downgrade the firmware 

Enable ssh, login as root, and execute

echo 1 >/firmware/mnt/info/revision

And now you can downgrade. But be aware of the vulnerability of CUPS.

MRisco

I was able to re-enable and update CUPS installing Entware and by using opkg.

MRisco

Thank you, I hope they restore the print server functionalities. Do you know if it is possible to install some third-party package to implement a print server like in other NAS brands? I bought this device because it was advertised as having a print server.