diff --git a/Ifish/Info.plist b/Ifish/Info.plist
index f704f05..4ec6c1c 100644
--- a/Ifish/Info.plist
+++ b/Ifish/Info.plist
@@ -70,7 +70,7 @@
 		</dict>
 	</array>
 	<key>CFBundleVersion</key>
-	<string>492</string>
+	<string>493</string>
 	<key>ITSAppUsesNonExemptEncryption</key>
 	<false/>
 	<key>LSApplicationCategoryType</key>
diff --git a/Ifish/controllers/leftcontrollers/IFishUDPHelperBackMsgModel.m b/Ifish/controllers/leftcontrollers/IFishUDPHelperBackMsgModel.m
index 3b1aabb..38fe3e5 100644
--- a/Ifish/controllers/leftcontrollers/IFishUDPHelperBackMsgModel.m
+++ b/Ifish/controllers/leftcontrollers/IFishUDPHelperBackMsgModel.m
@@ -13,7 +13,7 @@
 - (instancetype)initWithData:(NSData *)data {
     if (self = [super init]) {
         NSString*totalString=[dataContorl dataToHexString:data];
-        self.senderMacAddress = [totalString substringWithRange:NSMakeRange(2, 2)];
+        self.senderMacAddress = [totalString substringWithRange:NSMakeRange(4, 12)];
         self.result = [totalString substringWithRange:NSMakeRange(30, 2)];
         self.changshang = [totalString substringWithRange:NSMakeRange(32, 2)];
         self.device = [totalString substringWithRange:NSMakeRange(34, 2)];