To acquire firmware, software, driver or other support files for Zyxel devices, enter the model number in the search box.
For more product related search in Download Library, please click here.
Dec 20, 2017Oct 27, 2017
Dec 14, 2017Oct 12, 2017
Oct 24, 2017Jul 28, 2017Feb 07, 2017
Oct 11, 2017Sep 18, 2017Apr 10, 2017
Thanks for your interests.
Please read the Release Note carefully before updating firmware or installing software. Also, please be aware Zyxel is not responsible for damages if firmware, software, or other files are not installed according to the Release Note instructions. You can click to download the Release Note.
Notes to download the latest security gateway firmware:
We've made some changes to better serve you. Please log into your myZyxel account to obtain the latest firmware, ZLD4.25 for ZyWALL USG security gateway. Don't have an account yet? Sign up. Previous versions of firmware are still available on the Zyxel corporate website.