On the old system run:
/usr/local/fop2/fop2_server --revoke
And then on the new system run:
/usr/local/fop2/fop2_server --register
You will be prompted for your license codes in both cases.
Strange, as the development browser we use is Chrome... perhaps you have some extension installed that disables websockets connections? In any case open the javascript console and take a look at it.
Best regards,
