Hi, i checked the faq before posting and I only noticed this post pertaining to realVNC servers:
Q: After attempting a few connections to a RealVNC Server, I get a “Authentication Failure - Too many security failures” error, only rectified by a restart of the RealVNC server, or reboot the remote system. Why does this occur?
A: “Auth Failure” occurs when a client has “hit” a RealVNC server too frequently without a successfull login (it is on a timer and will eventually expire) there are some things you can do to mitigate it.
- Make sure you have password entered into the connection properties (EDIT) prior to initiating the connection.
- Make sure that in preferences you have availability polling set to OFF, or once at startup.
This is primarily a “feature”, more like a bug, in RealVNC logic where they consider ANY port traffic on the VNC port as a failed login attempt even prior to a password being supplied. We have looked at supplementing our port polling logic with a more sophisticated port scanner (half-connect attempt) but it’s a fair bit of work and doesn’t guarantee success. The real issue should be dealt with at RealVNC with configuration file support allowing attempt number configuration/specification, allowable time before blocking, or completely turn this feature off in secure known deployment environments.
However, like I said, my password has been correct every time and Ive never had an authorization failure. In fact, my password is actually stored in my client.
Even so, I am using Vine Server, and not realVNC. Does Vine server have that same “polling” thing, and if so, is there a way I can turn it off?