Updating your router’s firmware is a good fix for slow internet speeds. To update the Arris router firmware, download the firmware for your model from Arris support website. It is a fairly simple process that can be carried out on your own without the assistance of a technician. How to install Arris SBG6782-AC firmware update?
1. Log in to your router and type ‘192.168.0.1’ in a web browser.
2. Find out the firmware version of your router.
3. Check for the latest firmware update compatible to your device and
download it.
4. After you upload the file, the installation will continue automatically.
Read more: Arris Router login