How to Fix Hulu Error Code 21, 16911 or 11863 Network Issues

Hulu has become a staple for entertainment enthusiasts, offering an array of TV shows, movies, and original content. However, just like any digital platform, Hulu can occasionally throw a wrench in your streaming experience with error codes like 21, 16911, and 11863.

These codes often indicate network-related issues that can be frustrating for users eager to enjoy uninterrupted content. Fear not, though, as this article will guide you through effective step-by-step solutions to fix these errors and get back to enjoying your favorite shows and movies without interruption.

Photo credit by BoliviaInteligente on Unsplash

How to Troubleshoot and Fix Hulu App Streaming Error Code 21, 16911 or 11863 Network or Server Connection Issues

Restarting the Router/Modem

One of the most common fixes for network-related errors is restarting your router and modem. Here’s how to go about it:

  1. Turn off your router and disconnect the LAN cable
  2. Wait for a moment and then power on the router, allowing it to reboot fully
  3. Reconnect the LAN cable
  4. Wait for your streaming device to reconnect to the Wi-Fi network
  5. Check if the error code persists

Reset TCP/IP

Resetting the TCP/IP settings can resolve network connectivity issues that lead to these Hulu app issues when downloading or streaming content. Follow these steps based on your operating system:

On Windows:

  1. Type “cmd” into the search bar and run Command Prompt as an Administrator
  2. Enter the command “netsh int ip reset” and press Enter
  3. After completion, restart your system

On macOS:

  1. Click the Apple logo and open System Preferences
  2. Select Network and pick your active connection
  3. Switch to the TCP/IP tab and click Renew DHCP Lease
  4. Restart your machine

Flushing DNS Servers

Refreshing your DNS servers can often help reset your internet connection. Follow these steps:

On Windows:

  1. Search for Command Prompt, right-click, and run as Administrator.
  2. Enter the following commands one by one:
  • ipconfig /flushdns
  • ipconfig /registerdns
  • ipconfig /release
  • ipconfig /renew
  • netsh winsock reset
  1. Reboot your computer and launch Hulu.

On macOS:

  1. Open Terminal
  2. Enter “sudo killall -HUP mDNSResponder” and press Enter
  3. Provide your Admin Username and Password
  4. Restart your machine

Updating Network Drivers

Outdated or corrupted network drivers can also lead to these Hulu glitches and streaming problems. Ensure your network drivers are up to date:

On Windows:

  1. Search for Device Manager in the Start menu
  2. Locate Network adapters, right-click, and select Update Driver Software
  3. Choose the option to search automatically for updated drivers
  4. Reboot your system after the update

On macOS:

  1. Click the Apple logo and open System Preferences
  2. Go to Network and remove your current connection settings
  3. Restart your machine
  4. Re-add the connection and restart again

Uninstall VPN or Use Compatible VPN Services

Image credit by Stefan Coders from Pixabay

If you’re using a VPN, it might be the cause of these Hulu errors. Try disconnecting the VPN if you’re streaming within the US. For international streaming, switch to VPNs that bypass Hulu blocks, such as ProtonVPN, NordVPN, ExpressVPN, or Surfshark.

Sign up to one of these services here:

Contact Hulu Customer Service

If all else fails, don’t hesitate to reach out to Hulu’s customer support for personalized assistance.

Encountering Hulu error codes 21, 16911, or 11863 can be a frustrating bump in your streaming journey, but armed with these step-by-step solutions, you’re well-equipped to troubleshoot and resolve these network-related issues.

Whether it’s restarting your router, updating drivers, or resetting network settings, these fixes should pave the way for uninterrupted streaming on Hulu. Remember, each error might have a different cause, so feel free to try multiple solutions until you find the one that gets you back to enjoying your favorite content.

Read More About:
Tobi Olanrewaju
Tobi Olanrewaju
Tobi is a writer, gamer and tech enthusiast. If he's not typing on his keyboard, you can probably find him watching hours and hours of YouTube. He also enjoys helping other people get over pesky bugs and errors with streaming platforms and their devices.



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