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It’s no secret the Optimum GR140DG Router sucks (also known as the Altice FGW-GR140DG) and you’re better off using your own router (I used Eero before switching to Ubiquiti). If you want to use your own modem with Optimum Fiber, you need to get Optimum to switch your GR140DG to bridge mode and turn off WiFi. I would recommend having bridge mode enabled and your new WiFi router ready to go before you do these steps.
Why would you want to disable WiFI on your Optimum Router? If you want to use your own router, avoid having to double NAT, and don’t want a WiFi signal noise – disabling the built-in WiFI makes sense.
Here’s how to turn off WiFi on the Optimum GR140DG Router.
Note. This will disable WiFi on the GR140DG and stop the GR140DG from broadcasting an SSID.
- On. the front of your Optimum GR140DG, identify the WPS and INFO buttons
- Hold both buttons for 5-10 seconds
- WiFi will turn off!
You will know you did it correctly as the front WiFi LED will turn off. In my tests, once you turn off WiFi it remains off even after a power cycle. If it doesn’t work first go, you may need to hold longer (as long as 30 seconds according to some people who emailed me), it seems firmware dependent.
Important: Whatever you do, do not hit INFO again. For some reason, it seems to re-enable WiFi.
Tip: To use your own router, like an Eero, make sure you plug it into Port 1 (the top yellow ethernet port) on your Optimum GR140DG. This will save you from having to double NAT.
Reminder: Please don’t forget, you must also make sure Optimum set your GR140DG to bridge mode, you need to give Optimum a call to do this (Sorry, not my fault – but they can do it over the phone, no need for a service tech. to visit).
Important: I am not affiliated with any of the manufacturers, brands, services, or websites listed on this page and this is my personal experience. If you find this helpful and want to say thanks, please buy me a coffee or take a look at my book on Amazon. It keeps this page ad-free. Thank you!