As I always say, it’s not a Raspberry Pi project without a few hiccups. Here are some of the most common issues you’ll run into while setting up this project and how to fix them.
Unable to connect to PC
When the Raspberry Pi is failing to connect to your computer, it’s usually due to one of three things. The Pi is not connected to the network, the PC isn’t running steam, or the PC is waiting for you to enter the device authorization code. Ensure your Pi has a network connection and no prompts are open on the PC instance of Steam.
Internet connection failure
It’s hard to connect without a network! A LAN connection alone may not be enough to run Steam Link. Be sure your Raspberry Pi is connected to your network and able to reach external domains. Internet connection settings can be set within Raspbian. Adjust the network configuration prior to launching Steam Link.
Controller not working
Setting up a controller should be nothing more than plug and play. However, it wouldn't be a troubleshooting section without failure. If the connected controller isn't working, verify the controller meets the following criteria:
The controller works on other devices
Other devices work when using the same USB port
The controller is selected in Steam Link
When all else fails, there's nothing more reliable than a good old fashioned reboot (just like Grandma used to call for help with). Plug in the controller and restart the Pi with the controller connected.