In rare occasions with Rhino v6 (and even rarer in v7 and later) you may encounter a cloud zoo (rhino account) licensing loop that says something like “rhino needs a license, please enter your email” which you will do, and see “license found! log in with (your name)” which you do, and that takes you your rhino account, which asks you to login and allow access, then says "login successful " go back to rhino-
when leads you back to rhino which says “rhino needs a license”
and then you use grown up words and throw your keyboard across the room…
good news! There are two fixes for this. One easy, and one slightly more advanced easy…
A) Easy method
when rhino pops up the dialog asking for your email, look in the lower left and click options.
click remove license
rhino will close.
re-lauch rhino and that same dialog should pop up.
enter your email and click next
rhino should find your license
login to your account and click allow.
go back to Rhino and wait a few seconds, rhino should launch this time.
If that fails, try the advanced method…
B) Advanced method
Close rhino
Go to this folder in a file browser: %appdata%\McNeel\Rhinoceros\6.0\License Manager\Licenses (see Note 1.)
clear the contents of the folder
Search for ra_cache.txt and delete it (the ra_cache.txt file will be in %appdata%\McNeel\Rhinoceros under either the 7.0 or 8.0 folders, or both)
Empty your trash
Restart rhino, and enter your email and login as prompted.
Rhino should now start as expected.
Notes
this link points you to a v6 folder, this is correct even if you have v7, or v8.
please let us know if these fixes do not fix your licensing loop, as we need to help you because something weird is now happening.
as always, if you can’t sort a rhino problem quickly with a forum or google search, please hit us up at tech@mcneel.com or call 206-545-6877
I occasionally get messages from my clients about a different problem - like the one I just got a few hours ago:
(Translated from French) It happens sometimes when have many Rhino files open and I try to open a new one: I get the message “Retrieving license from the manager”, but it doesn’t find the license. At this moment it is impossible to open another instance of Rhino, I try to close the dialog, it asks me for my email address and password to connect, I try entering that but it does not work.
The only remedy I have found is to close all my open Rhino files and then it works again… There are even times - like today - when I have to completely restart my computer…
Don’t know if it’s related, but this is not the first time I have heard of this happening.
This is a known bug, there are quite a few posts on it from the last few days. They are working in fixing it. In principle yes, you can use both V7 and V8 on the same computer if you have a license of V7 and either the V8 paid upgrade or evaluation license.
Remove your v7 from your zoo. Remove your v8 from the zoo. Add your v8 back in and your v7 should be added automatically. If not, add it back in. Restart and try both again. This is due to v7 or v6 not being correctly linked to our validation servers and that causes the v8 problem. The fix is to remove both licenses and add v8 back 1st, then v7 unless it goes in automatically.
Unfortunately this does not solve the endless “Do you want to keep using…” cycle when multiple editions of Rhino are opened simultaneously on the same machine.
I tried all this methods, even logged in successfully on rhino website, but when I came back to rhino, it just always says “fetching license from the cloudzoo”, and nothing happened.
No, that doesn’t work. You have to close the first instance, not the second. So, to recast your example: Launch v8, Launch v7. When it asks if you want to continue using v8, answer no. v8 will close. Let v7 finish opening, then reopen v8. It will come up.
You can swap v7 and v8 in the above.
Note also that this workaround does not need the deletion and reinstallation of licences - that appears to be a red herring for this particular problem.
