Installing grasshopper to rhino 5

Why I cannot install grasshopper on rhino5 ?

License legal, service up to date.

Why this happens?

My experience is that some firewalls interfere with the “up-to-date” service, and you can only be 100% sure of being up-to-date by clicking Check Now and seeing the outcome on the web page you are redirected to.

What helped that instead of double clicked installer, I dragged and dropped in rhino and then it worked.

Oh well, what do you know, it worked :slight_smile:

@Petras_Vestartas do you also have RhinoWIP installed?

Yeah, both.

Thanks. I’m wondering if it could be something related to, but inverse to
I’ll need to check it on Monday.