Driver Station/RoboRIO communication issues

[Mark McLeod]

When your PC won't reconnect instead of rebooting your PC, the consensus is to Disable/Enable your network adaptor.
What OS are you using?

The radio dropping in and out was probably due to a crowded 2.4GHz band or the particular automatic channel selection being too busy.
The real field is much better at coordinating robot channels, or asking the venues to turn off the access points or 5GHz bands in the area.

Based on your robot's over response you may want to tinker with the motor safety margin and how your code sets motors only when new driver packets come in.