This article covers how to reset the Thomson Alcatel TWG850 router back to factory default settings. A router reset is very different than a router reboot. A reboot happens every time a router loses power. Resetting a router erases all settings from it and returns it to factory defaults.
Warning: Make sure that you fully understand the following before resetting your router. A router reset will affect the following settings:
- The router's login credentials are reset to factory defaults.
- Your WiFi name and password are reset.
- If your router has any ISP settings they will be removed, and you will have to contact your ISP.
- Any port forwards, firewall settings, or parental controls that you have configured will be removed.
Since a router reset is such a drastic step, it should only be done as a last resort when you cannot recover your router's password using any other methods. Make sure that you have tried to recover your router password using our Router Password Finder first.
Other Thomson Alcatel TWG850 Guides
This is the reset router guide for the Thomson Alcatel TWG850. We also have the following guides for the same router:
- Thomson Alcatel TWG850 - How to change the IP Address on a Thomson Alcatel TWG850 router
- Thomson Alcatel TWG850 - Thomson Alcatel TWG850 User Manual
- Thomson Alcatel TWG850 - Thomson Alcatel TWG850 Login Instructions
- Thomson Alcatel TWG850 - Setup WiFi on the Thomson Alcatel TWG850
- Thomson Alcatel TWG850 - Information About the Thomson Alcatel TWG850 Router
- Thomson Alcatel TWG850 - Thomson Alcatel TWG850 Screenshots
Recover Password in Thomson Alcatel TWG850
Before you resort to doing a full router reset, you may want to try running our Router Password Finder first.
Router Password Finder is designed from the ground up to help you recover your forgotten router username and password, which can save you a lot of time.
Router Password Finder - Automatically Recover Lost or Forgotten Router Passwords
Do not do a full router reset until after you have tried every other option to log in to your router.
Reset the Thomson Alcatel TWG850
Most routers have a small button on either the back or the bottom. Look for something that looks like this:

Yours may look slightly different, but they are usually tiny. You may need a paper clip to push the reset button.
Keep an eye on the lights on the front of your router while holding the reset button down for about 10 seconds. Notice how the lights on the front of the router are blinking. When the lights do something different, the router is reset. Keep holding the button as long as you want, it will not hurt anything to hold it down too long.
Don't forget, this step will totally reset your Thomson Alcatel TWG850 router back to factory settings.
Be sure to only reset your router if you have tried everything else, such as running our Router Password Finder software, which can find your lost or forgotten router password for you.
Login to the Thomson Alcatel TWG850
After you are finished resetting your router, you need to login in using the original factory username and password. Just follow our TWG850 Login Guide to find all of the information that you need.
Change Your Password
After logging in, you should really change your router's password for added security. Leaving a router password set to default is a very serious security risk. Our Choosing a Strong Password guide talks about choosing a strong password for your router.
Tip: A great place to write your new password down is on a piece of paper taped to the bottom of your router.
Other Thomson Alcatel TWG850 Guides
If you want additional help with your Thomson Alcatel TWG850 be sure to check out some of our other guides.
This is the reset router guide for the Thomson Alcatel TWG850. We also have the following guides for the same router:
- Thomson Alcatel TWG850 - How to change the IP Address on a Thomson Alcatel TWG850 router
- Thomson Alcatel TWG850 - Thomson Alcatel TWG850 User Manual
- Thomson Alcatel TWG850 - Thomson Alcatel TWG850 Login Instructions
- Thomson Alcatel TWG850 - Setup WiFi on the Thomson Alcatel TWG850
- Thomson Alcatel TWG850 - Information About the Thomson Alcatel TWG850 Router
- Thomson Alcatel TWG850 - Thomson Alcatel TWG850 Screenshots