All your devices must be updated and compatible to work smoothly. Usually you receive a notification about an update otherwise keep a check through website.
Here’s the steps for
Arris TG862 firmware update. Steps for update:
? Select status from set up page on the router interface.
? There will be a drop down menu. Chose router upgrade.
? Download the file and save it.
? Go to the downloaded file.
? Now, select upgrade and confirm it.
? The file will be uploaded and installed automatically.
Read more:
hard reset arris router