diff --git a/src/lib/mtproto/apiManager.ts b/src/lib/mtproto/apiManager.ts
index 0514b2d4..e2b272f1 100644
--- a/src/lib/mtproto/apiManager.ts
+++ b/src/lib/mtproto/apiManager.ts
@@ -273,13 +273,15 @@ export class ApiManager {
         }
       }
 
-      if(networker.isFileNetworker) {
+      if(transportType === 'websocket' && networker.isFileNetworker) {
         networker.onDrain = () => {
-          this.log('networker drain', networker);
-          
+          this.log('networker drain', networker.dcId);
+
           networker.onDrain = undefined;
           const idx = networkers.indexOf(networker);
           networkers.splice(idx, 1);
+          networkerFactory.removeNetworker(networker);
+          networker.destroy();
         };
       }
 
diff --git a/src/lib/mtproto/networker.ts b/src/lib/mtproto/networker.ts
index 152818d4..e8e8425e 100644
--- a/src/lib/mtproto/networker.ts
+++ b/src/lib/mtproto/networker.ts
@@ -17,7 +17,7 @@ import Schema from './schema';
 import timeManager from './timeManager';
 import networkerFactory from './networkerFactory';
 import { logger, LogTypes } from '../logger';
-import { assumeType, InvokeApiOptions } from '../../types';
+import { InvokeApiOptions } from '../../types';
 import { longToBytes } from '../crypto/crypto_utils';
 import MTTransport from './transports/transport';
 import { convertToUint8Array, bufferConcat, bytesCmp, bytesToHex } from '../../helpers/bytes';
@@ -370,8 +370,8 @@ export default class MTPNetworker {
   }
 
   public destroy() {
-    assumeType<TcpObfuscated>(this.transport);
-    this.transport.destroy();
+    //assumeType<TcpObfuscated>(this.transport);
+    (this.transport as TcpObfuscated).destroy();
   }
 
   // private sendPingDelayDisconnect = () => {
diff --git a/src/lib/mtproto/networkerFactory.ts b/src/lib/mtproto/networkerFactory.ts
index 8c8a0c31..6ae005e8 100644
--- a/src/lib/mtproto/networkerFactory.ts
+++ b/src/lib/mtproto/networkerFactory.ts
@@ -23,6 +23,13 @@ export class NetworkerFactory {
   public akStopped = false;
   public userAgent = navigator.userAgent;
 
+  public removeNetworker(networker: MTPNetworker) {
+    const idx = this.networkers.indexOf(networker);
+    if(idx !== -1) {
+      this.networkers.splice(idx, 1);
+    }
+  }
+
   public setUpdatesProcessor(callback: (obj: any) => void) {
     this.updatesProcessor = callback;
   }
diff --git a/src/lib/mtproto/transports/websocket.ts b/src/lib/mtproto/transports/websocket.ts
index aa7e2490..592e476b 100644
--- a/src/lib/mtproto/transports/websocket.ts
+++ b/src/lib/mtproto/transports/websocket.ts
@@ -56,7 +56,7 @@ export default class Socket extends EventListenerBase<{
       return;
     }
 
-    this.log.error('close execution');
+    this.log('close execution');
 
     try {
       this.ws.close();