First you have to identify the software version you are currently using on your Ariss router. For this, you must type 192.168.0.1 in the URL section. Check for the firmware version of your Arris router. Afterwards, go to the download section and download the most recent version of the firmware. It is important as the firmware update should be compatible with the Arris router model you are currently using. Return to the web interface and follow the step- by- step process to update Arris modem firmware. Now, locate the edit option. You can select the image you wish to upgrade. The last step is rebooting of Arris router and Arris firmware update is complete.