Grid connections to the front of a drive are no longer valid.

src/main/java/appeng/tile/storage/DriveTileEntity.java

@@ -22,6 +22,7 @@ import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Collections;
+import java.util.EnumSet;
 import java.util.IdentityHashMap;
 import java.util.List;
 import java.util.Map;
@@ -35,6 +36,7 @@ import net.minecraft.item.ItemStack;
 import net.minecraft.nbt.CompoundNBT;
 import net.minecraft.network.PacketBuffer;
 import net.minecraft.tileentity.TileEntityType;
+import net.minecraft.util.Direction;
 import net.minecraft.util.ResourceLocation;
 import net.minecraftforge.client.model.data.IModelData;
 import net.minecraftforge.items.IItemHandler;
@@ -111,6 +113,12 @@ public class DriveTileEntity extends AENetworkInvTileEntity implements IChestOrD
         this.inventoryHandlers = new IdentityHashMap<>();
     }
 
+    @Override
+    public void setOrientation(Direction inForward, Direction inUp) {
+        super.setOrientation(inForward, inUp);
+        this.getProxy().setValidSides(EnumSet.complementOf(EnumSet.of(inForward)));
+    }
+
     @Override
     protected void writeToStream(final PacketBuffer data) throws IOException {
         super.writeToStream(data);