diff --git a/lweb.pbi b/lweb.pbi
index d24577d..6b23b1f 100644
--- a/lweb.pbi
+++ b/lweb.pbi
@@ -1134,7 +1134,7 @@ Module lhs_web
                 sent_total = thread_temp_file_readed+(thread_buffer_offset-thread_buffer)
               EndIf
               ldl::Logging("Memory send_total:"+Str(sent_total))
-              ;TODO: Stoped download kill server...
+              ;Erledigt: Stoped download kill server...
               If  m_clients(Str(thread_cli_id))\client_type = #client_HTTPS
                 sent_length = sent_total 
                 sent_buffer_address = thread_buffer                
@@ -1181,7 +1181,13 @@ Module lhs_web
                 sent_buffer_address = thread_buffer
                 sent_total = 0
                 Repeat 
-                  sent = lsocket::WriteSocket(thread_cli_id, thread_buffer , sent_length) 
+                  If lsocket::IsClientSocket(thread_cli_id)
+                    sent = lsocket::WriteSocket(thread_cli_id, thread_buffer , sent_length) 
+                  Else
+                    thread_alive=#False
+                    Break 2
+                  EndIf
+                  
                   If sent <> -1
                     ldl::Logging("HTTP Sent:"+Str(sent)+" bytes")
                     sent_length - sent