Troubleshoot issues with Chromecast on a computer

If you're experiencing issues when using the HBO GO app and Chromecast on your computer, try the following troubleshooting steps.

Notes: to cast from a computer, your computer and Chromecast must be connected to the same Wi-Fi network, and you must have the Google Cast extension installed on your computer.

Step 1: Check your internet connection

To stream HD video, you need a high-speed connection with a minimum download speed of 5 Mbps for HD video.

When streaming video, HBO GO adjusts the video quality based on the strength of your network bandwidth and connection speed. If the network bandwidth is too low or the connection speed fluctuates, you might get a lower resolution video or no video. If your Internet connection drops altogether, the video will stop playing and you'll be prompted to reconnect.

To check your network speed, search for “speed test” in a browser, then select RUN SPEED TEST or Start.

If your network speed is above 5 mbps, your connection is fast enough for HBO GO. To keep troubleshooting, move onto Step 2.

If your network speed is below 5 mbps, try accessing HBO GO on another device, to make sure it’s the network and not just your device that’s having a problem. If the other device works fine, move to Step 2. If it also has trouble connecting to HBO GO, follow these steps to try and increase your network speed.

  1. Try a wired connection - Try connecting your computer to your home network using an Ethernet cable (if it isn't already), or contact your Internet provider for help.
  2. Reduce traffic on your Wi-Fi network - Try minimizing the number of devices using your Internet connection when you watch HBO GO. This will allocate as much bandwidth as possible for streaming HBO GO.
  3. Restart network Wi-Fi devices - As a last resort, try restarting your network devices. Unplug your modem and router, wait one minute, then plug them back in.

Step 2: Restart devices

Turn off your computer and your Chromecast for 1-2 minutes, then turn them back on and see if the issue is resolved.

If you're still having issues...

Visit the Chromecast support page, see the Computer browser troubleshooting steps, or send us a support request.