diff --git a/src/danog/MadelineProto/MTProto.php b/src/danog/MadelineProto/MTProto.php
index 6910deaa..9faf34c1 100644
--- a/src/danog/MadelineProto/MTProto.php
+++ b/src/danog/MadelineProto/MTProto.php
@@ -48,7 +48,6 @@ class MTProto
     public $bigint = false;
     public $run_workers = false;
     public $threads = false;
-    public $readers = [];
 
     public function __construct($settings = [])
     {
@@ -116,6 +115,9 @@ class MTProto
             if (!isset($this->reader_pool)) {
                 $this->reader_pool = new \Pool(count($dcs));
             }
+            if (!isset($this->readers)) {
+                $this->readers = [];
+            }
             foreach ($dcs as $dc) {
                 if (!isset($this->readers[$dc])) {
                     $this->readers[$dc] = new \danog\MadelineProto\Threads\SocketReader($this, $dc);
@@ -137,6 +139,9 @@ class MTProto
         if (isset($t['reader_pool'])) {
             unset($t['reader_pool']);
         }
+        if (isset($t['readers'])) {
+            unset($t['readers']);
+        }
 
         return array_keys($t);
     }
diff --git a/src/danog/MadelineProto/MTProtoTools/CallHandler.php b/src/danog/MadelineProto/MTProtoTools/CallHandler.php
index 8d0463a4..82dc1498 100644
--- a/src/danog/MadelineProto/MTProtoTools/CallHandler.php
+++ b/src/danog/MadelineProto/MTProtoTools/CallHandler.php
@@ -29,6 +29,9 @@ trait CallHandler
             throw new \danog\MadelineProto\Exception('No datacenter provided');
         }
         $args = $this->botAPI_to_MTProto($args);
+        if (isset($args['ping_id']) && is_integer($args['ping_id'])) {
+            $args['ping_id'] = \danog\PHP\Struct::pack('<q', $args['ping_id']);
+        }
         $serialized = $this->serialize_method($method, $args);
         $content_related = $this->content_related($method);
         $type = $this->methods->find_by_method($method)['type'];
diff --git a/src/danog/MadelineProto/MTProtoTools/SeqNoHandler.php b/src/danog/MadelineProto/MTProtoTools/SeqNoHandler.php
index a461ce0b..ebfcfd22 100644
--- a/src/danog/MadelineProto/MTProtoTools/SeqNoHandler.php
+++ b/src/danog/MadelineProto/MTProtoTools/SeqNoHandler.php
@@ -22,12 +22,13 @@ trait SeqNoHandler
         $in = $content_related ? 1 : 0;
         $value = $this->datacenter->sockets[$datacenter]->session_out_seq_no;
         $this->datacenter->sockets[$datacenter]->session_out_seq_no += $in;
-
+        //var_dump("OUT $datacenter: $value + $in = ".$this->datacenter->sockets[$datacenter]->session_out_seq_no);
         return ($value * 2) + $in;
     }
 
     public function check_in_seq_no($datacenter, $current_msg_id)
     {
+    
         if (isset($this->datacenter->sockets[$datacenter]->incoming_messages[$current_msg_id]['seq_no']) && ($seq_no = $this->generate_in_seq_no($datacenter, $this->content_related($this->datacenter->sockets[$datacenter]->incoming_messages[$current_msg_id]['content']['_']))) !== $this->datacenter->sockets[$datacenter]->incoming_messages[$current_msg_id]['seq_no']) {
             \danog\MadelineProto\Logger::log(['SECURITY WARNING: Seqno mismatch (should be '.$seq_no.', is '.$this->datacenter->sockets[$datacenter]->incoming_messages[$current_msg_id]['seq_no'].', '.$this->datacenter->sockets[$datacenter]->incoming_messages[$current_msg_id]['content']['_'].')'], \danog\MadelineProto\Logger::ERROR);
         }
@@ -38,12 +39,13 @@ trait SeqNoHandler
         $in = $content_related ? 1 : 0;
         $value = $this->datacenter->sockets[$datacenter]->session_in_seq_no;
         $this->datacenter->sockets[$datacenter]->session_in_seq_no += $in;
-
+        //var_dump("IN $datacenter: $value + $in = ".$this->datacenter->sockets[$datacenter]->session_in_seq_no);
         return ($value * 2) + $in;
     }
 
     public function content_related($method)
     {
+    //var_dump($method);
         return !in_array(
             $method,
             [
diff --git a/src/danog/MadelineProto/TL/TL.php b/src/danog/MadelineProto/TL/TL.php
index b3edc330..45ccb1a9 100644
--- a/src/danog/MadelineProto/TL/TL.php
+++ b/src/danog/MadelineProto/TL/TL.php
@@ -554,7 +554,7 @@ trait TL
                         break;
                 }
             }
-            if (in_array($arg['name'], ['msg_ids', 'msg_id', 'bad_msg_id', 'req_msg_id', 'answer_msg_id', 'first_msg_id', 'key_fingerprint', 'server_salt', 'new_server_salt', 'server_public_key_fingerprints'])) {
+            if (in_array($arg['name'], ['msg_ids', 'msg_id', 'bad_msg_id', 'req_msg_id', 'answer_msg_id', 'first_msg_id', 'key_fingerprint', 'server_salt', 'new_server_salt', 'server_public_key_fingerprints', 'ping_id'])) {
                 $arg['strlong'] = true;
             }
             $x[$arg['name']] = $this->deserialize($bytes_io, $arg);