RealVNC 1.4.2, Windows Server 2003, Grey Screen?


Somewhat eXPerienced
24 Dec 2001
Hey guys,

We recently have been utilizing RealVNC on a lot of machines here. There are a few servers that we have to use the application because various things don't work right when connecting using RDP. On only one server, however, we are unable to use RealVNC to connect initially.

When I use RealVNC (using default options, to a Windows 2003 Server), we will connect to the server. On both the local server as well as the RealVNC Connection, we get a grey screen when the background is normally blue. From this point, we do not get a "Press Ctrl+Alt+Delete to login" box or anything. Even when closing out the RealVNC Session, the grey screen remains on the local machine. We have to RDP into the local machine to kick it out of the grey screen.

Now, while we have RDP enabled, we are able to RealVNC into the machine, however the things that don't work with RDP in the first place won't work because that's how we connected. Strange, I know. Even after reinstalling the realVNC application, it still is doing the same thing. There are no errors that I can see.

Anyone have any ideas?


OSNN Addict
5 May 2008
You may need to change your MTU (maximum transmission unit) on your

I think the default MTU for most routers is 1500, a suggesting setting is 1492.

My understanding is the packet size is to large and somehow confuses VNC.

Something to try anyway. Let me know

Members online

No members online now.

Latest forum posts

Latest profile posts

Electronic Punk wrote on Sazar's profile.
Rest in peace my friend, been trying to find you and finally did in the worst way imaginable.
Terrahertz wrote on Electronic Punk's profile.
Yo fellas!
Electronic Punk wrote on Sazar's profile.
Where are you buddy?
Perris Calderon wrote on Electronic Punk's profile.
Hey EP! All good with me, applying for Microsoft MVP right now, should have done this a while ago.

Notifications don't work, I only found your response by coming back to hunt up some threads, if you want, give me your email address so we can keep in touch easier!
Perris Calderon wrote on Electronic Punk's profile.
EP, glad to see you come back and tidy up...did want to ask a one day favor, I want to enhance my resume , was hoping you could make me administrator for a day, if so, take me right off since I won't be here to do anything, and don't know the slightest about the board, but it would be nice putting "served administrator osnn", if can do, THANKS

Been running around Quora lately, luv it there!

Forum statistics

Latest member