Traxxas Link 2.4ghz problem
 

Hey I have a Team Associated TC5 that I recently bought and today I plugged in my 2s lipo and took it to the street to test it out. I got maybe 50ft from where i was standing and the car slowly kept rolling away from me with no control over it. It ran into a yard no damage done but I am 99% sure I lost signal from the transmitter to reciever. The antenna looks fine I took it out and checked to make sure and the transmitter is not blinking red (low batteries indication) Is there any other cause of this? could it be a bad connection between the battery and esc? When i got close to it again everything worked fine however i did not take it too far from where i was standing.

its the radio and reciever