Hi SJohn,
Thank you for the response.
First thing we should check is are the responses from the java service returning a 200 status code. To find this, open Internet Explorer and navigate to a chatroom. Then click the F12 key to open up the developer tool bar. Click on the nework, and select play (green arrow), wait to get a URL that says http://<domain.com>:<port>/frontend/Poll/ and then pause the capture of network.
I attached a screen shot of what you should see. What you are looking for is the results and any error that may happen. This is going to help us pinpoint if this is a firewall issue, a browser security issue, a java chatserver issue or a configuration issue.
Can you please provide a similar screenshot?
Regards,
Adam