How to Fix YouTube Error 400

Want to know how to fix YouTube error 400? Read this article to figure it out in different situations.

iMobie Last Updated: Sep. 10, 2020

YouTube users sometimes may run into various problems when watching YouTube videos every day, YouTube error 400, YouTube error 401, YouTube error 404, YouTube error 500, YouTube error 503, etc. Maybe even worse, not only one problem has happened. So to fix these errors, we provide you with practical solutions. In this tip, how to fix YouTube error 400 is our target.

YouTube error 400 happens in many situations, when we browse YouTube website on computer, when we use YouTube app on mobiles, and when we open YouTube app on smart TV. So in the following we will list different solutions according to different occasions.

Solution 1. Fix YouTube Error 400 Occurring on Computer

This occasion happens mostly because when you surf on YouTube, you have send YouTube server a bad header in the request, and this can also happen if the browser tries to use something that’s already been cached. The solutions are clearing cookies and caches in your browser, and restart it. Clearing the temporary Internet files, history, and password would be best.

Solution 2. Fix YouTube Error 400 Occurring on Phone

“When switching from an Android Applications that uses webView and the Intent function to watch YouTube videos with the YouTube app I receive a “There was a problem with the network [400]” error. There is no issue with the network, cause I am on wifi.”

In this occasion, you can first try to log out of YouTube app, then log in again. If it does not work, you should try the ultimate advice. You need to replace the direct YouTube video link to just the video ID itself. It works every time.

Solution 3. Fix YouTube Error 400 Occurring on Smart TV

“I have had issues with my Philips bdp 2205 which does not run youtube anymore. I do not know what happened since two days ago. It was working fine. My netflix still runs, but youtube no!!

A message saying:

“400. That’s an error.

Your client has issued a malformed or illegal request. That’s all we know.”

It appears every time that I try running you tube using the blu-ray. It is wired and according to the device it is updated.”

When YouTube error happens on smart TV, you need check whether the device is the latest software firstly. If it is up to date and YouTube error 400 still exist, you can try with disconnecting the power supply for five minutes or more. And it still does not work, the last solution is to hard reset your device, or restore the default settings. By these steps, you can totally get your YouTube right.

Bonus Tip: How to Download Videos from YouTube

Watching YouTube videos online does not only include these errors occasionally, but also is limited to network. So we can’t view YouTube video where there is no Wi-Fi. Can we download them to our computers, or phones? Unfortunately, YouTube does not support downloading videos. But with many other applications we can download YouTube videos. Here we will share a super easy-to-use video downloader – AnyTrans to you.

How to Download Videos from YouTube with AnyTrans

AnyTrans supports more than 900 video websites video downloading, no matter what kind of videos formats, MP4, MOV, MKV, AVI, FLV, etc. There are just three steps to download your YouTube videos.

Step 1. Download AnyTrans to your computer (PC/Mac) > Install and run it.

Step 2. Plug in your iPhone to computer > Click Media Downloader button.

Step 3. Copy the URL of YouTube video to the searching area > Search the video > Click Download button to start.

Copy URL and Search in AnyTrans

Copy URL and Search in AnyTrans

The Bottom Line

Needing more solutions to other YouTube errors, just follow us, or leave your words in the comment. And don’t forget to have a try with AnyTrans to download videos from YouTube.


Member of iMobie team, an Apple fan as well as an anime lover. Like to share solutions on iOS and Android related problems.