I'm also stuck. I'm also using Snow Leopard (10.6.4) as a client
I'm trying to use VNC to connect to a Windows Server (Real VNC, VNC Server 4.1.2)
1- Chicken of the VNC gives me "Server closed the connection"
2- JollysFastVNC just says "Closed", but in the Console log I get a few errors:
10-10-21 9:58:52 AM JollysFastVNC[4912] (003664b0.0291)-[NetworkConnection connectWithSettings:] trying: XXXXXXX-HOSTNAME-REMOVED-XXXXXXX
10-10-21 9:58:52 AM JollysFastVNC[4912] (003664b0.0726)-[NetworkConnection connectToAddress:securityType:] Not using a socks proxy
10-10-21 9:58:52 AM JollysFastVNC[4912] (008d0a00.1165)-[VNCProtocol authenticate] Caught JNXConnectionException: (008d0a00.0400)-[VNCProtocol authenticate] version read error
10-10-21 9:58:52 AM JollysFastVNC[4912] (003664b0.0583)-[NetworkConnection disconnect] could not shut down readhandle
10-10-21 9:58:52 AM JollysFastVNC[4912] (003664b0.0592)-[NetworkConnection disconnect] could not shut down writehandle
When I Google "JNXConnectionException" I get NO answers at all.
3- When I try the built in VNC using "Go -> Connect To Server" I get "Connection Failed", and it tells me to turn on "Screen Sharing" on the server, which is not very helpful given that the server is not a mac.
Any help or suggestions would be greatly appreciated!
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edit: SOLVED.
Mine turned out to be an IP problem - the VNC server was set to only accept certain IP ranges, which my machine was not inside.
Glad it turned out to be a simple thing. Jollys works now, though Chicken does not.