localhost socket stuck with specific data ?

[Hadeel]

Thank you for your reply!
OK.....I guess it is because the resident script runs lutron_login() every time?

Does this code look better?

Code:

require('user.lutron')
require('socket')
if not server then 
  server = socket.udp()
  server:setsockname('127.0.0.1', 5485)
  --server:settimeout(3)
end
data = server:receive()
if data then
  if not tcp then
    tcp, err = lutron_login()
    if tcp == nil then
      grp.checkwrite('10/0/2', true)
    else
      tcp:send(data)
      os.sleep(0.3)
    end
  end
end