diff --git a/CMakeLists.txt b/CMakeLists.txt
index 409a49a0..a671429b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -81,10 +81,14 @@ else()
 endif()
 
 set(OBSW_ADD_TMTC_TCP_SERVER
-    ${OBSW_Q7S_EM}
+    # TODO: Activate TCP server until VC0 issue has been resolved
+    # ${OBSW_Q7S_EM}
+    1
     CACHE STRING "Add TCP TMTC Server")
 set(OBSW_ADD_TMTC_UDP_SERVER
-    0
+    # TODO: Activate UDP server until VC0 issue has been resolved
+    # 0
+    1
     CACHE STRING "Add UDP TMTC Server")
 set(OBSW_ADD_MGT
     ${INIT_VAL}
diff --git a/bsp_q7s/fmObjectFactory.cpp b/bsp_q7s/fmObjectFactory.cpp
index 5eeeef59..ba2f9478 100644
--- a/bsp_q7s/fmObjectFactory.cpp
+++ b/bsp_q7s/fmObjectFactory.cpp
@@ -97,7 +97,8 @@ void ObjectFactory::produce(void* args) {
 #if OBSW_TM_TO_PTME == 1
   if (ccsdsArgs.liveDestination != nullptr) {
     pusFunnel->addLiveDestination("VC0 LIVE TM", *ccsdsArgs.liveDestination, 0);
-    cfdpFunnel->addLiveDestination("VC0 LIVE TM", *ccsdsArgs.liveDestination, 0);
+    // Deactivated for tests to avoid changes to VC0 usage.
+    // cfdpFunnel->addLiveDestination("VC0 LIVE TM", *ccsdsArgs.liveDestination, 0);
   }
 #endif
 #endif /* OBSW_ADD_CCSDS_IP_CORES == 1 */
diff --git a/mission/com/TmStoreTaskBase.cpp b/mission/com/TmStoreTaskBase.cpp
index 0470dc04..6598225d 100644
--- a/mission/com/TmStoreTaskBase.cpp
+++ b/mission/com/TmStoreTaskBase.cpp
@@ -94,6 +94,13 @@ void TmStoreTaskBase::cancelDump(DumpContext& ctx, PersistentTmStore& store, boo
 ReturnValue_t TmStoreTaskBase::handleOneDump(PersistentTmStoreWithTmQueue& store,
                                              DumpContext& dumpContext, bool& dumpPerformed) {
   ReturnValue_t result = returnvalue::OK;
+  // The PTME might have been reset an transmitter state change, so there is no point in continuing
+  // the dump.
+  // TODO: Will be solved in a cleaner way, this is kind of a hack.
+  if (not channel.isTxOn()) {
+    cancelDump(dumpContext, store, false);
+    return returnvalue::FAILED;
+  }
   // It is assumed that the PTME will only be locked for a short period (e.g. to change datarate).
   if (not channel.isBusy() and not ptmeLocked) {
     performDump(store, dumpContext, dumpPerformed);
@@ -131,22 +138,25 @@ ReturnValue_t TmStoreTaskBase::performDump(PersistentTmStoreWithTmQueue& store,
   dumpContext.ptmeBusyCounter = 0;
   tmSinkBusyCd.resetTimer();
   ReturnValue_t result = store.getNextDumpPacket(tmReader, fileHasSwapped);
-  if (fileHasSwapped and result == PersistentTmStore::DUMP_DONE) {
+  if (result != returnvalue::OK) {
+    sif::error << "PersistentTmStore: Getting next dump packet failed" << std::endl;
+  } else if (fileHasSwapped or result == PersistentTmStore::DUMP_DONE) {
     // This can happen if a file is corrupted and the next file swap completes the dump.
     dumpDoneHandler();
     return returnvalue::OK;
-  } else if (result != returnvalue::OK) {
-    sif::error << "PersistentTmStore: Getting next dump packet failed" << std::endl;
-    return result;
   }
   dumpedLen = tmReader.getFullPacketLen();
-  result = channel.write(tmReader.getFullData(), dumpedLen);
-  if (result == DirectTmSinkIF::IS_BUSY) {
-    sif::warning << "PersistentTmStore: Unexpected VC channel busy" << std::endl;
-  } else if (result != returnvalue::OK) {
-    sif::warning << "PersistentTmStore: Unexpected VC channel write failure" << std::endl;
+  // Only write to VC if mode is on, but always confirm the dump.
+  // If the mode is OFF, it is assumed the PTME is not usable and is not allowed to be written
+  // (e.g. to confirm a reset or the transmitter is off anyway).
+  if (mode == MODE_ON) {
+    result = channel.write(tmReader.getFullData(), dumpedLen);
+    if (result == DirectTmSinkIF::IS_BUSY) {
+      sif::warning << "PersistentTmStore: Unexpected VC channel busy" << std::endl;
+    } else if (result != returnvalue::OK) {
+      sif::warning << "PersistentTmStore: Unexpected VC channel write failure" << std::endl;
+    }
   }
-
   result = store.confirmDump(tmReader, fileHasSwapped);
   if ((result == PersistentTmStore::DUMP_DONE or result == returnvalue::OK)) {
     dumpPerformed = true;
diff --git a/mission/com/VirtualChannel.cpp b/mission/com/VirtualChannel.cpp
index ff3749a9..8e225674 100644
--- a/mission/com/VirtualChannel.cpp
+++ b/mission/com/VirtualChannel.cpp
@@ -11,14 +11,23 @@ ReturnValue_t VirtualChannel::sendNextTm(const uint8_t* data, size_t size) {
 }
 
 ReturnValue_t VirtualChannel::write(const uint8_t* data, size_t size) {
-  return ptme.writeToVc(vcId, data, size);
+  if (txOn) {
+    return ptme.writeToVc(vcId, data, size);
+  }
+  return returnvalue::OK;
 }
 
 uint8_t VirtualChannel::getVcid() const { return vcId; }
 
 const char* VirtualChannel::getName() const { return vcName.c_str(); }
 
-bool VirtualChannel::isBusy() const { return ptme.isBusy(vcId); }
+bool VirtualChannel::isBusy() const {
+  // Data is discarded, so channel is not busy.
+  if (not txOn) {
+    return false;
+  }
+  return ptme.isBusy(vcId);
+}
 
 void VirtualChannel::cancelTransfer() { ptme.cancelTransfer(vcId); }