Hulu Error Code DRMCDM78 – Fixed[8 Methods]

Looking for effective fixes for Hulu Error Code DRMCDM78? Sit back and relax, you are at the right place.

In this article, let’s delve into the underlying causes of Hulu Error Code DRMCDM78 and provide you with a comprehensive guide on troubleshooting techniques to overcome it. Whether it’s cache data corruption, server maintenance, unstable internet connections, or outdated browsers, I’ve got you covered with step-by-step instructions to resolve the issue and resume your Hulu binge-watching adventures.

Key Takeaways

  • Hulu error code drmcdm78 will cause a playback error when you try to stream.
  • In most cases, it occurs when you are streaming via the browser.
  • It is not as daunting as it seems. Check if the Hulu servers are functional and have a cache cleanup on your device.

What Causes Hulu Error Code DRMCDM78?

Before jumping on the fixes, it is important to know about the error itself. Once you have pinpointed the cause of your error, you have already solved half of your problem. It is well known that Hulu is one of the most user-friendly platforms for streaming. However, it is reported that Hulu Error Code DRMCDM78is most experienced by people who are using a computer or laptop to stream Hulu shows. According to the reports, it mostly occurs when you are operating with Windows, Linux, or Mac. You will see a prompt with “Error playing video” while facing the error.

Error playing video

A general explanation of this error is blocking Hulu from streaming content on your device, preventing movies and shows from playing. Let’s dig deep into some root causes which may have caused this error to pop:

  1. Cache data built up on your device may be corrupted, causing the error to display.
  2. Sometimes Hulu servers are down for maintenance purposes. In this case, there is nothing you can do apart from just waiting for servers to function again.
  3. You may have an unstable internet connection, due to which Hulu servers are unable to respond. This problem is referred to as “TCP” or “IP inconsistency.”
  4. Your browser may be outdated and lacking support for streaming protocols. Hence, Hulu cannot stream on your device through the older version of your browser.

How To Fix Hulu Error Code DRMCDM78

Amongst all the causes listed above, one would match your case surely. So now, let’s look into some easy fixes for each cause and find a way to solve the error. I will try to summarise all the possible effective solutions to solve the error.

Check The Status Of Hulu Servers

The first thing you should look into is Hulu’s official website, or social media account to confirm that there are no server issues in the first place. If this is the case, you will come across news regarding the server maintenance on their support page and a tentative date stating when Hulu servers will be available again. You can also visit this site to find out whether the servers are up or not.

For the server issues of which you are not in control, the best you can do is to just wait patiently for the server to function again. If there are no server issues and you are experiencing the same error, you can follow the other fixes mentioned below.

Clear The Cache Data

Cache data is sometimes useful in the sense that it helps to restore your previous data. However, if too much of it is stacked up, some of the data may get corrupted, causing errors in streaming. So to ensure that you don’t come up with these hurdles while streaming, it is always wiser to clear your cache data and it might direclty solve Hulu Error Code DRMCDM78. There are different ways of clearing the cache data varying from browser to browser. I will cover the method of clearing cache data for the most widely used browsers and mobile platforms.


  1. Click on the three-dotted icon located top right side of your browser home page.
  2. An options bar will display.
  3. Click on the option “More tools.”
  4. Select the “Clear browsing data” option
  5. Choose “All time” in “Time range.”
  6. Tick-mark all the options that appear on the page.
  7. Next, click “Clear data.”
Hulu error code DRMCDM78
Chrome Cache


  1. Open the History page.
  2. Select the “Clear Recent History.”
  3. Choose “Everything” for the Time Range.
  4. Click “Clear Now” on the box option.
  5. Relaunch your browser.


  1. Open Safari browser on your device.
  2. Select “Preferences” in the “Safari” option present on the top left side of your screen.
  3. Now open the Privacy tab.
  4. Click on “Manage Website Data.”
  5. Select “Remove all” followed by “Remove Now.”

Microsoft Edge

  1. Open the History page by pressing “Ctrl”+”H” simultaneously.
  2. Select “Clear browsing data.”
  3. Tick mark all the boxes.
  4. Set the time range to “All time” and press “clear now.”
Browsing Data
Edge Cache

Android Device

  1. Go to “settings”→”storage.”
  2. Scroll through the “App” option.
    Hulu error code DRMCDM78
    App Cache
  3. Find the “Hulu” app.
  4. Select the “Storage” option.
  5. Tap on the option “Clear Cache.”

iOS Device

  1. Delete the app by long pressing on the icon until a cross appears on the top of the app.
  2. Tap on the cross symbol(“X”).
  3. Reinstall the app from App Store.

Clearing the cache does not affect the performance of your browser; however, you will be logged out from the accounts whose data was saved as your cache data in the browser.

Clearing cache data would fix the error if the error was connected to the corrupt cache files. However, you can try other fixes from this article if the error still shows.

Update your Browser

You have verified that the problem is not from the Hulu server’s end and is not linked to the cache. Now, the next thing you can do is check for browser updates. There is a high chance that your browser is not up to date and lacks some important updates to enable support for streaming protocols. Follow the below-mentioned steps to update your browser.

Chrome (Windows/MacOS)

  1. Open Chrome and click on the three-dot icon present on the top-hand side of your screen.
  2. Go to “Help”→”About Google Chrome”.
  3. A short scan will happen to find any updates. If any new update is available, it will display after the scan.
    Chrome Update.
  4. You will be prompted to relaunch your browser as soon as the update completes.

Chrome (Linux)

  1. Type “sudo apt update” on a terminal Window and press enter. This will begin the update.
  2. When you are prompted to confirm the operation, press “Y”.
  3. In the correct Google repository, enter “sudo apt-get – -only-upgrade install google-chrome-stable” to install the latest updates.

Firefox (Windows/MacOS)

Open the firefox→action icon at the top right corner→”Help”→”About Firefox”→Restart and update Firefox(if an update is available).

Firefox (Linux)

  1. Open the terminal Window.
  2. Type the following command on your Unbuntu.
Hulu error code DRMCDM78
Firefox update.

Use the yum tool instead if you are using Redhat, Fedora, or CentOS:

Hulu error code DRMCDM78
Using Yum tool.

Restart The Router

Restarting your router can tackle “TCP” or “IP inconsistency” related issues. Restarting your router will help you restore your connection. This can resolve Hulu Error Code DRMCDM78. To do so, press the on-off button located at the back of your router. This will switch off your router. Also, remove the power supply cable from your router.

Hulu error code DRMCDM78
Restart router.

After one minute, reconnect the power cable and press the on-off button again to switch on the router. Eventually, your internet connection will be restored. If this doesn’t solve your issue, you can go for a router reboot.

Reboot The Router

Rebooting your router should always be your last option since, by doing so, you will reset all of your router settings. All of your router settings will be restored to factory settings.

Find the reset button at the back of the router. In most cases, the reset button is hidden inside, so you would need a screwdriver to access it or paper clip.

Reboot router.

Once you have found it, press and hold it until all the LEDs on your router start blinking at the same time. Reinsert the credentials provided by your ISP after the procedure has been completed restoring your internet access.

Now try to stream again and check if the error is fixed.

Update Billing information

Keep a check that your Hulu subscription is up to date. If it is not, this can be the cause of the error; you can go and update your billing information to get rid of the error. Furthermore, incorrect information can play a part in this error, so ensure your billing information is authentic and accurate.

Windows Firewall

Windows Firewall is sometimes responsible if your programs are not functioning properly since it blocks some features. Unfortunately, Hulu can be one of these programs. Therefore, disable the Windows firewall and see if this fixes the error.

You can disable the Windows firewall by following these steps:

Goto “Control Panel”→”System Security”→”Windows Firewall”→”off”.

Hulu error code DRMCDM78
Window firewall settings.

Stream Hulu Using Chrome Browser On Chromecast

Many users using Chromecast devices to stream Hulu have reported,  which sums up that Chromecast is not a reliable platform for streaming Hulu. Therefore, if you are using the platform, it will be better to use the Chrome browser on Chromecast to stream. This can eliminate the Hulu Error Code DRMCDM78 and allow you to watch your favourite shows without any hurdles.

What If The Error Is Not Getting Fixed?

If you have tried everything and the error is still not going away, then you must contact Hulu Support immediately. Get in touch with their team and let them know your problem. Hopefully, they will be able to fix your problem quickly. Make sure to let them know about all the methods you tried to save time.


Hulu Error Code DRMCDM78 occurs when attempting to stream content, particularly through web browsers like Chrome, Firefox, Safari, or Microsoft Edge. The error is commonly experienced by users on Windows, Linux, or Mac operating systems. The potential causes include cache data corruption, server maintenance, unstable internet connections, and outdated browsers.

The solutions provided include checking Hulu server status, clearing cache data, updating browsers, restarting or rebooting routers, updating billing information, disabling Windows Firewall, and using the Chrome browser on Chromecast. If the error persists, users are advised to contact Hulu Support.

You can go check out our other articles if you face other errors, including Hulu error code 503 and P-Dev336.

What is Hulu error code DRMCDM78?

Hulu error code DRMCDM78 is a playback error that occurs if Hulu servers are down or there are some corrupted files in your cache data.

How to fix Hulu error code DRMCDM78?

Try clearing cache data if it does not solve the problem you can check for any browser update available.

How can I check that my browser is up to date?

Search for the help option in the action bar and click on the "about google chrome" option. This will take to the updates page.

How can I restore my internet connection if it is always fluctuating?

Try restarting your router if it does not help go far a factory reboot.

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