No, it is not going to work. If all your servers are sharing a central license server, you wont be able to do that.
When you upgrade license server, it will become 9.1 license server. it will not accept 9.0 client any more.
Frank
No, it is not going to work. If all your servers are sharing a central license server, you wont be able to do that.
When you upgrade license server, it will become 9.1 license server. it will not accept 9.0 client any more.
Frank