the blackberry unite! server is unavailable

Hi, anyone else getting this error message when using the Remote Device Management; or anyone know why?

Thanks in advance

It means that: 1) your server is down; 2) your server can't contact RIM Ops Center (ROC); 3) your blackberry can't contact the ROC; or 4) the blackberry hasn't established a tunnel to your server.

I find this happens occasionally. 1 and 2 may or may not come back, depends of the problem. 3 and 4 and usually temporary and related to availability of data services, and usually comes back quickly.