USB adapter is wired through the USB-C in the dock - not wireless. (Same as normal USB connection, just different plug) Unless you have blazing fast internet, you're not likely to see a great difference in speed between wired/wireless. What wired is better for is consistency in most cases. Wireless is prone to interference and has higher latency (different from speed). You may need to shut down the console completely by holding the power button then turn it on with the adapter plugged in if you are only getting wireless.