diff --git a/mission/com/CcsdsIpCoreHandler.cpp b/mission/com/CcsdsIpCoreHandler.cpp
index 766fd67c..78533165 100644
--- a/mission/com/CcsdsIpCoreHandler.cpp
+++ b/mission/com/CcsdsIpCoreHandler.cpp
@@ -246,7 +246,12 @@ ReturnValue_t CcsdsIpCoreHandler::checkModeCommand(Mode_t mode, Submode_t submod
 void CcsdsIpCoreHandler::startTransition(Mode_t mode, Submode_t submode) {
   triggerEvent(CHANGING_MODE, mode, submode);
   if (mode == HasModesIF::MODE_ON) {
-    if (this->submode != submode) {
+    // Check whether the rate actually changes.
+    if ((this->submode != submode) and
+            ((submode == static_cast<Submode_t>(com::CcsdsSubmode::DATARATE_LOW) and
+              ptmeConfig.getRate() != RATE_100KBPS)) or
+        ((submode == static_cast<Submode_t>(com::CcsdsSubmode::DATARATE_HIGH) and
+          ptmeConfig.getRate() != RATE_500KBPS))) {
       initPtmeUpdateAfterXCycles();
       updateContext.enableTransmitAfterPtmeUpdate = true;
       updateContext.updateClockRate = true;
@@ -255,7 +260,6 @@ void CcsdsIpCoreHandler::startTransition(Mode_t mode, Submode_t submode) {
       updateContext.setModeAfterUpdate = true;
       return;
     }
-    if(ptmeConfig.setRate(bitRate))
     // No rate change, so enable transmitter right away.
     enableTransmit();
   } else if (mode == HasModesIF::MODE_OFF) {