Cumulus error 32701

[k5pat]

I have a Davis Vantage Pro2 Plus station running Weatherlink IP. The logger is plugged directly into my router and is feeding the Davis Weatherlink site along with CWOP and WU. These are working OK.
  I have Cumulus running on a separate ASUS eeePC notebook running windows XP SP3.  Cumulus will run OK for a few hours and then I get a box which says error 32701--"Error communicating with station".
     I set up the ASUS with a TCP/IP connection to my router address 192.168.1.89, TCP port 22222. The data logger also has the same address.
    Can anyone tell me what is causing this problem?  When I get the error I close Cumulus and restart it and it will run OK for a few more hours.

Pat
Edit: Cumulus is feeding PWSweather.com and it is the latest version software.