I’m using Vine Viewer to monitor 13 screens in remote locations. I have no problems with 12 of them but the other one won’t let me connect and returns the message: "Connection failed: Too many security failures. I can connect to this screen by other VNC clients with no problems and cannot find in the support literature any reference to the message I receive.
Does anyone have any ideas?
Thanks in advance 
This can happen with many of the VNC Servers if you fail to login a few times in a row.
In particular – RealVNC will regard any IP connection to it’s VNC port as a “failed” login attempt and after a few it will temporarily disable access. For this reason we recommend choosing “Skip Availability Check” for any RealVNC servers.
Let us know if that doesn’t solve your problem.
Many thanks, that seems to have solved the problem.
Cheers