diff --git a/modules/net/net-ext.lua b/modules/net/net-ext.lua
index 5e901c5..615b59a 100644
--- a/modules/net/net-ext.lua
+++ b/modules/net/net-ext.lua
@@ -8,13 +8,17 @@ function net.sendstring(addr,port,msg) -- for sending lots of data
  end
 end
 function net.recvstring(addr,port)
- local fr,po,msg = ""
+ local t,fr,po,msg = {},"","",""
  repeat
-  _,fr,po,msg = event.pull("net_msg")
+  t,fr,po,msg = event.pull("net_msg",10)
+  if not t then
+   return
+  end
  until fr == addr and po == port
  local ml,s = tonumber(msg), ""
  for i = 1, ml do
-  _,fr,po,msg = event.pull("net_msg")
+  t,fr,po,msg = event.pull("net_msg",10)
+  if t == nil then break end
   if fr == addr and po == port then
    s=s..tostring(msg)
   end