I have an issue with a couple of Rhino installations (on Window 7 & 8) where, for no apparent reason, they stop being able to find the ZOO license server.
The ZOO server IS running as other Rhino´s on the network are using it.
I´m pretty sure that nothing has been changed on the machine between when it works and stops working.
The ZOO Diagnostic tools has no problem finding ZOO!
I tried to disable IPV6 as this sometimes helps other licensing issues - no help.
The ONLY way I can get it to work is by un-installing and re-installing Rhino 5 (from a fresh download). And then it finds the ZOO Server immediately?
McNeel has not seen this before support tells me - has anybody else? and did you find a more elegant way around it.
(hmm just writing this I get unsure if the Rhino´s in question, was updated to the latest service pack. That could be a reason, that a fresh download works as they usually are the latest builds, I think)