I'm unable to connect to a VNC server on a different subnet
Posted on 2008-10-07
We have a pc running VNC (on Subnet A) and we can connect without issue while on subnet B. If I try to connect from subnet C the VNCViewer immediately closes without an error. This happens regardless of the client machine we try to use. I can ping/tracert to the host PC running VNC Server from any subnet, however the problem subnet C has 1 extra hop. I've checked the FW and do not see any issues. If I run a port scan from Subnet C it shows ports 5800 & 5900 as listening, I cannot telnet on either port to the host computer from subnet C.