Communication Issue

[Potatonator]

Half the time, the robot communicates just fine. The other half, the communication randomly drops in and out, and sometimes stops working entirely. We thought we had fixed this, as we'd already posted a thread here and gotten a solution (here). But now the same issue is happening again, and we don't have long to fix it. Help, please! (by the way, sorry if I shouldn't have posted another thread for this, but I wanted to make sure we got help before competition. And we're leaving in four days, so we don't have very long.)