The computer running the e-AR software (PTX Express) must be connected to the internet. If you do not have an internet connection, please organise one through an Internet Service Provider (ISP).
The e-AR software has been designed to run on Microsoft Internet Explorer 7, 8, 9 and Firefox 25+. Newer versions of Microsoft Internet Explorer (such as Internet Explorer 10 and 11) as well as other internet browsers (for example Chrome and Safari) may also be compatible. However, older versions of Microsoft Internet Explorer and Firefox may not be compatible.