Netflix is one of the world’s most popular media streaming services, with an ever-expanding portfolio of movies, TV shows, and games. However, its widespread popularity also means that you’re likely to run into errors from time to time as millions of subscribers worldwide try to access the service simultaneously.
In this article, we’re talking about the “Netflix error code M7399”, its causes and what you can do to fix the problem.
What causes Netflix error code M7399?
The error generally happens when the media certificate or site information stored in your browser is too old. Other common causes include:
- Internet connectivity issues
- Corrupt cookies or cache data
- Outdated browser version
- Server issues from Netflix’s end
Also read: How to fix Netflix error tvq-rnd-100?
How to fix Netflix error code M7339?
Here are six fixes you can try out.
Restart your router
Power cycling your network equipment fixes more issues than you can think. More often than not, connectivity issues can be caused by an underlying bug in your router and can be fixed by rebooting.
Switch browsers
Sometimes, a glitch in your browser can also trigger this error. If the problem happens in your usual browser, try accessing Netflix using another browser to see if the issue is with your browser or Netflix itself.

Check available storage
Another thing you need to keep in mind is that you should have at least 100MB of space on your device while streaming Netflix for optimal performance. If you don’t have enough space, there’s a chance that the site won’t be able to function as expected and will show errors like this.
Clear browser data
Corrupt files in your cache or otherwise can cause the error as well. Clear them out to see if you can get Netflix to work.
Step 1: Type in chrome://settings/clearBrowserData in your browser’s address bar and hit Enter.

Step 2: Select the cache and cookies options and ensure the Time range is set to All time. Click on the Clear now button to clear out all the data.

Now, try reaccessing the service; the error should be resolved.
Disable VPN
Another possible cause for the issue could be that you’re using a VPN. Many streaming services are geo-restricted due to content copyright issues, and using a VPN can cause problems with their functionality and content availability, causing errors.
Contact Netflix support
If all else fails, your best bet is to reach out to Netflix Customer Support and let them investigate and fix the issue for you.
Also read: What to do if Netflix’s Continue Watching is gone?