diff --git a/Tethering/src/android/net/ip/IpServer.java b/Tethering/src/android/net/ip/IpServer.java
index 433b903..c5478d2 100644
--- a/Tethering/src/android/net/ip/IpServer.java
+++ b/Tethering/src/android/net/ip/IpServer.java
@@ -1054,7 +1054,7 @@
                 case CMD_START_TETHERING_ERROR:
                 case CMD_STOP_TETHERING_ERROR:
                 case CMD_SET_DNS_FORWARDERS_ERROR:
-                    mLastError = TetheringManager.TETHER_ERROR_MASTER_ERROR;
+                    mLastError = TetheringManager.TETHER_ERROR_INTERNAL_ERROR;
                     transitionTo(mInitialState);
                     break;
                 default:
@@ -1185,7 +1185,7 @@
                         } catch (RemoteException | ServiceSpecificException e) {
                             mLog.e("Exception enabling NAT: " + e.toString());
                             cleanupUpstream();
-                            mLastError = TetheringManager.TETHER_ERROR_ENABLE_NAT_ERROR;
+                            mLastError = TetheringManager.TETHER_ERROR_ENABLE_FORWARDING_ERROR;
                             transitionTo(mInitialState);
                             return true;
                         }
diff --git a/Tethering/src/com/android/server/connectivity/tethering/EntitlementManager.java b/Tethering/src/com/android/server/connectivity/tethering/EntitlementManager.java
index e81d6ac..bd60594 100644
--- a/Tethering/src/com/android/server/connectivity/tethering/EntitlementManager.java
+++ b/Tethering/src/com/android/server/connectivity/tethering/EntitlementManager.java
@@ -25,7 +25,7 @@
 import static android.net.TetheringManager.TETHERING_WIFI;
 import static android.net.TetheringManager.TETHER_ERROR_ENTITLEMENT_UNKNOWN;
 import static android.net.TetheringManager.TETHER_ERROR_NO_ERROR;
-import static android.net.TetheringManager.TETHER_ERROR_PROVISION_FAILED;
+import static android.net.TetheringManager.TETHER_ERROR_PROVISIONING_FAILED;
 
 import android.app.AlarmManager;
 import android.app.PendingIntent;
@@ -579,7 +579,7 @@
         switch (value) {
             case TETHER_ERROR_ENTITLEMENT_UNKNOWN: return "TETHER_ERROR_ENTITLEMENT_UNKONWN";
             case TETHER_ERROR_NO_ERROR: return "TETHER_ERROR_NO_ERROR";
-            case TETHER_ERROR_PROVISION_FAILED: return "TETHER_ERROR_PROVISION_FAILED";
+            case TETHER_ERROR_PROVISIONING_FAILED: return "TETHER_ERROR_PROVISIONING_FAILED";
             default:
                 return String.format("UNKNOWN ERROR (%d)", value);
         }
@@ -592,7 +592,7 @@
             protected void onReceiveResult(int resultCode, Bundle resultData) {
                 int updatedCacheValue = updateEntitlementCacheValue(type, resultCode);
                 addDownstreamMapping(type, updatedCacheValue);
-                if (updatedCacheValue == TETHER_ERROR_PROVISION_FAILED && notifyFail) {
+                if (updatedCacheValue == TETHER_ERROR_PROVISIONING_FAILED && notifyFail) {
                     mListener.onUiEntitlementFailed(type);
                 }
                 if (receiver != null) receiver.send(updatedCacheValue, null);
@@ -635,8 +635,8 @@
             mEntitlementCacheValue.put(type, resultCode);
             return resultCode;
         } else {
-            mEntitlementCacheValue.put(type, TETHER_ERROR_PROVISION_FAILED);
-            return TETHER_ERROR_PROVISION_FAILED;
+            mEntitlementCacheValue.put(type, TETHER_ERROR_PROVISIONING_FAILED);
+            return TETHER_ERROR_PROVISIONING_FAILED;
         }
     }
 
diff --git a/Tethering/src/com/android/server/connectivity/tethering/Tethering.java b/Tethering/src/com/android/server/connectivity/tethering/Tethering.java
index 6e91892..8e2d4f4 100644
--- a/Tethering/src/com/android/server/connectivity/tethering/Tethering.java
+++ b/Tethering/src/com/android/server/connectivity/tethering/Tethering.java
@@ -39,11 +39,12 @@
 import static android.net.TetheringManager.TETHERING_USB;
 import static android.net.TetheringManager.TETHERING_WIFI;
 import static android.net.TetheringManager.TETHERING_WIFI_P2P;
-import static android.net.TetheringManager.TETHER_ERROR_MASTER_ERROR;
+import static android.net.TetheringManager.TETHER_ERROR_INTERNAL_ERROR;
 import static android.net.TetheringManager.TETHER_ERROR_NO_ERROR;
 import static android.net.TetheringManager.TETHER_ERROR_SERVICE_UNAVAIL;
 import static android.net.TetheringManager.TETHER_ERROR_UNAVAIL_IFACE;
 import static android.net.TetheringManager.TETHER_ERROR_UNKNOWN_IFACE;
+import static android.net.TetheringManager.TETHER_ERROR_UNKNOWN_TYPE;
 import static android.net.TetheringManager.TETHER_HARDWARE_OFFLOAD_FAILED;
 import static android.net.TetheringManager.TETHER_HARDWARE_OFFLOAD_STARTED;
 import static android.net.TetheringManager.TETHER_HARDWARE_OFFLOAD_STOPPED;
@@ -545,7 +546,7 @@
                 break;
             default:
                 Log.w(TAG, "Invalid tether type.");
-                result = TETHER_ERROR_UNKNOWN_IFACE;
+                result = TETHER_ERROR_UNKNOWN_TYPE;
         }
 
         // The result of Bluetooth tethering will be sent by #setBluetoothTethering.
@@ -586,7 +587,7 @@
             Binder.restoreCallingIdentity(ident);
         }
 
-        return TETHER_ERROR_MASTER_ERROR;
+        return TETHER_ERROR_INTERNAL_ERROR;
     }
 
     private void setBluetoothTethering(final boolean enable, final IIntResultListener listener) {
@@ -622,7 +623,7 @@
                 // We should figure out a way to bubble up that failure instead of sending success.
                 final int result = (((BluetoothPan) proxy).isTetheringOn() == enable)
                         ? TETHER_ERROR_NO_ERROR
-                        : TETHER_ERROR_MASTER_ERROR;
+                        : TETHER_ERROR_INTERNAL_ERROR;
                 sendTetherResult(listener, result, TETHERING_BLUETOOTH);
                 adapter.closeProfileProxy(BluetoothProfile.PAN, proxy);
             }
@@ -2180,7 +2181,7 @@
         // If TetherMasterSM is in ErrorState, TetherMasterSM stays there.
         // Thus we give a chance for TetherMasterSM to recover to InitialState
         // by sending CMD_CLEAR_ERROR
-        if (error == TETHER_ERROR_MASTER_ERROR) {
+        if (error == TETHER_ERROR_INTERNAL_ERROR) {
             mTetherMasterSM.sendMessage(TetherMasterSM.CMD_CLEAR_ERROR, who);
         }
         int which;