Online license registration fails.
Phenomenon
When attempting online license registration, you may encounter the following error message and the registration may fail:
Cause
Network configurations vary, so the cause of the problem can also vary, but the following are possible causes:
- Internet access is restricted by the firewall... Solution (1)
- A specific proxy needs to be specified... Solution (2)
- Insufficient forwarding information from the proxy server... Solution (3)
The following are solutions for these causes. Please try the solutions in the following order.
If the problem persists, please contact Technical Support.
Solution
(1) Check Firewall settings
The firewall must allow internet access to the license authentication server. Please verify that connections to the specified IP address are permitted according to the following "Firewall whitelisting" information:
https://cryptlex.com/docs/proxies-and-firewall/proxies-and-firewall#firewall-whitelisting
For further details, please consult your network administrator.
(2) Proxy Settings
When registering your license online, the application must be able to access the following URL:
https://api.cryptlex.com/v3/activations
Launch "Terminal" or "PowerShell" from the Windows Start menu and check the output of the following command.
If the output matches the expected value below, you are able to access the above URL without any problems, and proxy settings are not required.
Command:
try { Invoke-WebRequest -Uri "https://api.cryptlex.com/v3/activations" } catch { $_.Exception.Message }
Expected result:
The remote server returned an error: (401) Forbidden
If you need to specify a particular proxy to access the above URL, please configure the proxy using the following method before registering your license:
- Click the [Network Settings] link at the bottom of the [Register License] dialog to open the [Network Connection Information] dialog.
- Check the [Use Proxy] checkbox, enter the [Server Address] and other information required when using the proxy, and click the [OK] button.
Note that for the [Server Address] value, do not include "http(s)://", but specify the server's FQDN or IP address.
(For details on proxy settings, please contact your network administrator.)
3. Return to the [License Registration] dialog, enter your [Product Key] and [Email Address], and click the [Register] button.

(3) Checking Proxy Server Settings
During online license registration, network communication uses the "100-Continue" HTTP request header. If you are using an HTTP/1.0 compatible proxy server, this header may not be forwarded correctly, resulting in license registration failure. In that case, one of the following actions is required:
- Configure the proxy server to bypass 100-Continue
- Upgrade to an HTTP/1.1 compatible proxy server
For details, please contact your network administrator.