Error: "Unable to connect to the other user's console" in Nintendo Switch


Symptoms

The following error occurs while attempting to connect to another player on the Nintendo Switch:

Unable to connect to the other user's console. Please try again later.

example screenshot

Cause

Texas Tech University's enterprise-class network can't accommodate Nintendo's choice of technology for player matchmaking.

Resolution

Purchase a wired adapter and connect the switch console to a wired port.