If it doesn’t, then try the following fixes.
Change your browser:
Now, if you are using a supported browser, like Google Chrome, and you suddenly see this error, then try a different supported browser. You can download and install Firefox or any other such supported browser and log in to Netflix in that browser. Once you do log in, try opening up any Netflix and see if this error pops up again. The chances are that it won’t.
If for some reason, this fix doesn’t work for you, then the next fix should do the job.
Update your browser:
Sometimes simply updating your browser will do the trick for you.
Google Chrome:
- Open Google Chrome and click on the three-dot button option on the top right corner of the screen.
- Go to Help, and from there, click on About Google Chrome.
- A new window will open up where the browser will automatically start looking for the latest version. If it finds the newest version, then it will install it in the background.
- After the installation, just simply close all your chrome browser windows and open the browser again.
Firefox:
- Open the Firefox browser and click on the three dash icon on the top right corner of the screen.
- Click on the help option, and there you will see the option About Firefox. Click on it.
- Now automatically, Firefox will start scanning for a newer version, and when it finds out, it will install it automatically.
- After the installation, just simply relaunch your browser.
Opera:
- Open the Opera browser and click on the Menu button on the top left corner of the screen.
- Next, click on Update and Recovery.
- Then the browser will scan for a newer version, and when it finds one, it will install it automatically.
- After the installation is complete, click on the Relaunch now button.
Updating your browser should do the job for you.
Disable all the Google Chrome extensions:
Sometimes google chrome users face this issue even after trying all these above fixes. It might be due to the buggy extensions you have on your browser. So to fix, you can try disabling all the Google Chrome extensions altogether.
- Open Google Chrome and click on the three-dot button option on the top right corner of the screen.
- Click on Settings, and in the next window, click on Advanced.
- Scroll and look for the option Reset And Clean up. Under it, you will find Restore settings to their original defaults. Click on it.
- Click on Reset settings again to confirm your action. It will disable all your extensions.
If even this doesn’t work out for you, then try the final fix mentioned below.
Reinstall the browser:
It should be the last resort that you try if none of the above fixes work.
- Click on the windows search bar and type Run. Open Run once it shows up in the results.
- In the Run dialog box, enter “appwiz.cpl” and hit the enter button.
- You will see a list of applications here. From the list, click on the browser you are having the issue and click on the option to Uninstall.
- After uninstalling that browser, open up another browser you have on your system.
- Go to the uninstalled browser’s homepage and install it again using the online installer.
- After successfully reinstalling, try streaming Netflix again, and it should work for you.
We hope, one of these fixes helped you with your Netflix error M7121-1331-P7. Further, if you liked our guide, why not go and check our best iPhone Tips and Tricks, PC tips and tricks, Games and Android Tips and Tricks. You can also subscribe to our very own YouTube Channel and participate in the $150 giveaway contest. Likewise, if you have any queries or feedback, do comment down below with your name and e-mail ID.
