diff --git a/src/main/java/dev/tilera/auracore/AuraCore.java b/src/main/java/dev/tilera/auracore/AuraCore.java
index 346578a..2433668 100644
--- a/src/main/java/dev/tilera/auracore/AuraCore.java
+++ b/src/main/java/dev/tilera/auracore/AuraCore.java
@@ -6,6 +6,9 @@ import cpw.mods.fml.common.SidedProxy;
 import cpw.mods.fml.common.event.FMLInitializationEvent;
 import cpw.mods.fml.common.event.FMLPostInitializationEvent;
 import cpw.mods.fml.common.event.FMLPreInitializationEvent;
+import cpw.mods.fml.common.event.FMLServerAboutToStartEvent;
+import cpw.mods.fml.common.event.FMLServerStartingEvent;
+import cpw.mods.fml.common.event.FMLServerStoppedEvent;
 import cpw.mods.fml.common.network.NetworkRegistry;
 import cpw.mods.fml.common.network.simpleimpl.SimpleNetworkWrapper;
 import cpw.mods.fml.common.registry.GameRegistry;
@@ -13,6 +16,7 @@ import cpw.mods.fml.relauncher.Side;
 import dev.tilera.auracore.api.Aspects;
 import dev.tilera.auracore.aura.AuraCalculationThread;
 import dev.tilera.auracore.aura.AuraDeleteThread;
+import dev.tilera.auracore.aura.AuraManager;
 import dev.tilera.auracore.aura.AuraUpdateThread;
 import dev.tilera.auracore.aura.AuraWorldTicker;
 import dev.tilera.auracore.client.GUITicker;
@@ -91,4 +95,14 @@ public class AuraCore {
         ThaumcraftApi.registerObjectTag(new ItemStack(ConfigBlocks.blockCustomOre, 1, 10), new AspectList().add(Aspect.EARTH, 1).add(Aspect.TAINT, 3).add(Aspect.CRYSTAL, 2));
     }
 
+    @Mod.EventHandler
+    public void onServerLoad(FMLServerAboutToStartEvent event) {
+        AuraManager.invalidate();
+    }
+
+    @Mod.EventHandler
+    public void onServerStop(FMLServerStoppedEvent event) {
+        AuraManager.invalidate();
+    }
+
 }
diff --git a/src/main/java/dev/tilera/auracore/aura/AuraManager.java b/src/main/java/dev/tilera/auracore/aura/AuraManager.java
index 92460f4..7109349 100644
--- a/src/main/java/dev/tilera/auracore/aura/AuraManager.java
+++ b/src/main/java/dev/tilera/auracore/aura/AuraManager.java
@@ -50,6 +50,18 @@ public class AuraManager {
     public static Object saveLock = new Object();
     public static NodeIdStorage nodeIdStore = null;
 
+    public static void invalidate() {
+        auraNodes.clear();;
+        auraUpdateList.clear();
+        nodeNeighbours.clear();;
+        nodeChunks.clear();
+        markedForTransmission.clear();;
+        fluxEventList.clear();
+        auraCalcQueue.clear();
+        auraDeleteQueue.clear();
+        auraUpdateQueue.clear();
+    }
+
     public static int registerAuraNode(World world, short lvl, EnumNodeType type, int dim, int x, int y, int z) {
         return registerAuraNode(world, lvl, type, dim, x, y, z, false);
     }