So sometimes we just lose connection to our robot, we usually solve this by pushing in the wire ports, so does that mean if we replace the wire it will fix it?
So for radio communications to work (look at Event Logs to see if radio disconnects) the radio needs to be placed so optimal signal can reach the V5 controller. So if your radio module is buried inside your robot, likely signal may cut out.
If it is a cable issue, then try swapping it out.
Picture of setup helps to debug.