Connect via Ethernet for the Steam link while using Wi-Fi for the PC.
Connect via Ethernet for the Steam link while using Wi-Fi for the PC.
Currently I’m using a streaming link linked to a projector to play games from my PC across the room. It’s one floor above our router, and everything in the setup runs on 5GHz Wi-Fi, though I often experience stuttering due to interference. You’re wondering if connecting both devices via Ethernet cables—using an old router as a switch—would work while still getting internet through WiFi. You mentioned a 50-foot HDMI cable could suffice, but you already have Ethernet cables and prefer the cost savings.
Based on your previous router model you might be able to repurpose it as a wireless access point. The older device would link to the new one via Wi-Fi, while your PC and Steam connection would reach the old router through Ethernet. Once set up this way, your PC would no longer use Wi-Fi directly but would get internet via Ethernet, then switch to Wi-Fi between the routers. Not every router supports this configuration, so you'll need to research further.
In theory, simply linking the Ethernet cable and assigning static IP addresses outside your local network should resolve the issue. Most PC network cards will recognize a direct NIC connection and enter crossover mode. This behavior relies on whether the Steamlink requires online access or not. Ideally, it should only need internet for updates. Even then, it may function using Windows' built-in file sharing feature.
It's even better! I linked the router to both devices, turned off wireless on the router, and it worked perfectly—great job! Thanks to all who helped!