Which exact part of your solution is responding you with "Remote access not allowed" message? How does it look like?
I unsure BrowserPrint is intended to work being installed on another remote computer. Seems it is intended to run on the same computer that runs your browser.
You may have at least two cause for your issue. First one is a CORS security feature that may prevent your browser to communicate with server that is not origin of your HTML page with JS code. It could be not the case for communicating to BrowserPrint from PHP code.
Another cause could be an exact IP address used by server part of BrowserPrint to bind on. In case it bounds only on localhost (127.0.0.1) then it will not accept any requests from your network. In case it is impossible to change BrowserPrint server settings to bind it on other network IP address you can use custom netcat script to redirect your TCP connection from your network to localhost.
Software Engineer, Kutir Mobility
Posted on behalf of Zebra Technologies