Update voice client main ws references when reconnecting.

discord/gateway.py

@@ -199,6 +199,8 @@ class DiscordWebSocket(websockets.client.WebSocketClientProtocol):
         ws._dispatch = client.dispatch
         ws.gateway = gateway
 
+        client.connection._update_references(ws)
+
         log.info('Created websocket connected to {}'.format(gateway))
         if not resume:
             yield from ws.identify()

discord/state.py

@@ -107,6 +107,10 @@ class ConnectionState:
     def _remove_voice_client(self, guild_id):
         self._voice_clients.pop(guild_id, None)
 
+    def _update_references(self, ws):
+        for vc in self.voice_clients:
+            vc.main_ws = ws
+
     @property
     def servers(self):
         return self._servers.values()