Proxy Settings: If the client machine where the JSPrintManager App (JSPM) is installed requires to pass through a Proxy server to get access to your website (the one which uses the JSPrintManager solution), then you must configure JSPM utility with the required proxy settings following below links: https://www.neodynamic.com/Products/Help/JSPrintManager4.0/articles/jspm-app.html#command-line-options

https://www.neodynamic.com/articles/JSPrintManager-JSPM-Proxy-Configuration

Certificate Errors: JSPrintManager uses SSL certificates to print from HTTPS Websites, which in case of problems can be re-installed on demand:

https://www.neodynamic.com/Products/Help/JSPrintManager4.0/articles/jspm-app.html#command-line-options

MS Edge Network Security: Depending on the network configuration settings MS Edge users must allow WebSocket connection to localhost. Using the following steps:  Open Internet Explorer, then click ⚙ (Gear Icon) ⇨ Internet Options ⇨ Security ⇨ Local Intranet ⇨ Sites ⇨ Uncheck the first checkbox.

https://www.neodynamic.com/Products/Help/JSPrintManager4.0/articles/jspm-app.html#overview