[SuperBK]

Try turning off the windows firewall on the computer running the driver station.

If you are using C++ or java, open the RioLog to see if there are any error messages. You can also open a console window to the roborio from the driver's station app by clicking on the gear over the box on the right hand side and selecting "View Console". See if there is anything in the console about code starting up and then terminating.

On the driver's station diagnostic tab, is the robot light green? That is the same as typing ping roborio-TEAM-FRC.local from a command prompt, which you can also try for fun. (substitute your team number for TEAM)