diff --git a/TMessagesProj/src/main/java/org/telegram/ui/LaunchActivity.java b/TMessagesProj/src/main/java/org/telegram/ui/LaunchActivity.java
index 1b11c9a3af..03a6b0e00e 100644
--- a/TMessagesProj/src/main/java/org/telegram/ui/LaunchActivity.java
+++ b/TMessagesProj/src/main/java/org/telegram/ui/LaunchActivity.java
@@ -6193,6 +6193,7 @@ protected void onPause() {
         if (ApplicationLoader.applicationLoaderInstance != null) {
             doNotPause = ApplicationLoader.applicationLoaderInstance.onPause();
         }
+        ProxyUtil.unregisterNetworkCallback();
         ConnectionsManager.getInstance(currentAccount).setAppPaused(!doNotPause, false);
         if (PhotoViewer.hasInstance() && PhotoViewer.getInstance().isVisible()) {
             PhotoViewer.getInstance().onPause();
diff --git a/TMessagesProj/src/main/java/tw/nekomimi/nekogram/utils/ProxyUtil.kt b/TMessagesProj/src/main/java/tw/nekomimi/nekogram/utils/ProxyUtil.kt
index 3626fb4c86..e725ca9fcf 100644
--- a/TMessagesProj/src/main/java/tw/nekomimi/nekogram/utils/ProxyUtil.kt
+++ b/TMessagesProj/src/main/java/tw/nekomimi/nekogram/utils/ProxyUtil.kt
@@ -49,6 +49,8 @@ import java.io.File
 
 
 object ProxyUtil {
+    private var networkCallback: ConnectivityManager.NetworkCallback? = null
+    private var networkCallbackStatus = false
 
     @JvmStatic
     fun isVPNEnabled(): Boolean {
@@ -66,8 +68,11 @@ object ProxyUtil {
 
     @JvmStatic
     fun registerNetworkCallback() {
+        if (networkCallbackStatus) {
+            return
+        }
         val connectivityManager = ApplicationLoader.applicationContext.getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
-        val networkCallback: ConnectivityManager.NetworkCallback =
+        networkCallback =
             object : ConnectivityManager.NetworkCallback() {
                 override fun onAvailable(network: Network) {
                     val networkCapabilities =
@@ -92,12 +97,25 @@ object ProxyUtil {
                 }
             }
 
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
-            connectivityManager.registerDefaultNetworkCallback(networkCallback)
-        } else {
-            val request: NetworkRequest = NetworkRequest.Builder()
-                .addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET).build()
-            connectivityManager.registerNetworkCallback(request, networkCallback)
+        try {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+                connectivityManager.registerDefaultNetworkCallback(networkCallback!!)
+            } else {
+                val request: NetworkRequest = NetworkRequest.Builder()
+                    .addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET).build()
+                connectivityManager.registerNetworkCallback(request, networkCallback!!)
+            }
+            networkCallbackStatus = true
+        } catch (_: Exception) {}
+    }
+
+    @JvmStatic
+    fun unregisterNetworkCallback() {
+        if (networkCallbackStatus && networkCallback != null) {
+            val connectivityManager = ApplicationLoader.applicationContext.getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
+            try {
+                connectivityManager.unregisterNetworkCallback(networkCallback!!)
+            } catch (_: Exception) {}
         }
     }