Remote Desktop Client Loses Focus
Posted on 2009-02-10
I have a Windows XP client application that works using 'report by exception'. In other words it depends on the assiciated application server to tell it something has happened and then relay this via its own local display and audible automatically. The server is connected to a number of wireless access points as a master channel using a 10BaseT copper connection. The client is a roaming tablet PC which can pick up the 802.11b signal from any of the access points, all of which are using fixed IP addresses in the same range. Under normal operation I am using Remote Desktop to connect from the wireless roaming tablet PC (Win XP-SP3) to the Windows 2008 Server running Terminal Services. My problem is that during roaming the Tablet PC will loses focus across access points and never return until the mouse is clicked or in our case we use the light pen to touch the screen. This is true even if there is a strong wireless signal present. The Remote Desktop Connection is not lost since the screen doesn not go B/W. Also I have Auto-Reconnection enabled anyway. I tried upgrading to RDP v6 but it made no difference. I have also eliminate the Application software as being the problem because the same can be seen if displaying the Server's system clock on the tablet. In this case the clock is seen to freeze after connection to a new access point. It will never recover until the screen is brought back into focus using the mouse. Does anyone know how I can always have the screen refreshed automatically while seemlessly roaming?