Driver won't communicate with robot

[Potatonator]

Originally Posted by Tom Line

This would initially appear to be one of three cases:

Network congestion. Are your robot and driverstation the ONLY two computers on the network?

Yes

Wifi congestion. Are there other networks in close proximity that utilize the same channel that might be interfering?

We aren't sure how to check on that

Gaming adapter placement. Is your adapter away from the drive motors, battery cable, and also not surrounded by metal?

Yes

Also, you should check the CPU usage of the cRIO. You can check it from the driver station. If it is at 100%, your code is likely the culprit.

CPU usage is just fine

Do the symptoms disappear when you tether? Do they happen when your robot is stationary, or only when it is trying to move (under electrical load)?

Problems go away when we tether, but they do happen even if it's not moving.

@Alan: We checked, we aren't running it twice.

We're thinking it might be a bad router, but not sure yet.