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--- zoo:windowssecurity [2021/02/25]
dale created
+++ zoo:windowssecurity [2021/02/25] (current)
brian
@@ Line 1: / Line 1: @@
-====== Windows Security Settings & License Activation ======
+====== Windows Security Settings & License Validation ======
 > **Product:** //[[zoo:home|Zoo]]//
-> **Summary:** //Discusses Windows security settings and how it effects license activation.//
+> **Summary:** //Discusses Windows security settings and how it effects license validation.//
-===== Discussion =====
+===== Symptoms: ====
-In case other people run into the same problem, we wanted to give you a heads-up that a recommended Windows Security setting interferes with activating licenses in Zoo. This particular case involved Windows Server 2012 R2. However, Windows Server 2016 and 2019 should be affected in the same way.
+  * The Zoo cannot connect to the McNeel Validation Server at https://api.mcneel.com.
+  * Internet Explorer cannot connect to https://api.mcneel.com from the validation server, though other browsers will succeed.
-In this case, this Windows Registry value was preventing us from activating our new Rhino licenses:
+===== Solution: =====
+Enable PKCS Key Exchange Algorithm by setting the **Enabled** value of the following registry key to **0xffffffff**.
 <code>
@@ Line 13: / Line 15: @@
 Name:  Enabled
 Type:  REG_DWORD
-Value: 0x0
+Value: 0xffffffff
 </code>
-Internet Explorer was also failing to connect to //api.mcneel.com//, but Firefox was working, which helped narrow down the scope of the problem. Setting the **Enabled** value to **0xffffffff** (or deleting it) is enough to get things working again.
+===== Discussion: =====
+A recommended Windows Security setting interferes with validating licenses in the LAN Zoo on Windows Server 2012 R2, 2016 and 2019.
+If PKCS is disabled, the LAN Zoo cannot connect to the McNeel Validation Server.
+Setting the **Enabled** value to **0xffffffff** (or deleting it) is enough to get things working again. The default value for Enabled is 0x0.
 \\
 {{tag>Zoo}}

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