This is the reset guide for the Huawei HG8121H router. This is not the same thing as rebooting a router. Every time your router loses power it reboots. This is very different from a reset, which erases a router completely and returns it to factory default settings.
Warning: This is not a step to be taken lightly. The following settings will be changed in your router:
- The router's login and password are reset to factory defaults.
- All WiFi information such as network name, password, and authentication method are erased.
- Your ISP username and password will be reset, and you may have to contact your ISP.
- Any firewall settings, parental controls, or port forwards that you have configured will be removed.
A router reset should be considered the last resort when you cannot log in to your router any other way. Make sure that you have tried to recover your router password using our Router Password Finder first.
Other Huawei HG8121H Guides
This is the reset router guide for the Huawei HG8121H V3R016C10S115. We also have the following guides for the same router:
Recover Password in Huawei HG8121H
If you are resetting your router because you forgot your router password, then you should try running our Router Password Finder first.
Router Password Finder can save you a ton of time by recovering your lost or forgotten router password instead of doing a full router reset.
Router Password Finder - Lost or Forgotten Router Password Recovery Tool
Just keep in mind that a router reset should be done as the last resort when you are unable to login to your router.
Reset the Huawei HG8121H
You can usually find a small reset button on either the back or the bottom of a router. Look at your router and try to find something that looks like this:
Reset buttons are usually tiny. Yours may look slightly different than this. You might find a pinhole on the back of the router that requires a paper clip to push the button hidden under it.
Watch the lights on the front of your router and hold 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. You can hold the button down as long as you like, it will not hurt anything.
Just don't forget that this will totally reset your Huawei HG8121H router.
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 Huawei HG8121H
Now you need to log in using the factory default username and password. Just follow our HG8121H Login Guide to find all of the information that you need.
Change Your Password
Do not forget to change your router's default password when you log back into it. Since factory passwords are well known, it's a huge security risk to leave your router set to the default. Our Choosing a Strong Password guide talks about choosing a strong password for your router.
Tip: After creating this new password, we highly recommend writing this down on a post-it note and attaching it to the bottom of your router for future reference.
Other Huawei HG8121H Guides
Here are some of our other Huawei HG8121H guides that you might be interested in.
This is the reset router guide for the Huawei HG8121H V3R016C10S115. We also have the following guides for the same router: