Since they took it out of Global access the only way to access it is to make a complaint as an enthusiast that you can no longer access the site from the home page that gets displayed. using the feedback link at the bottom of the page.
https://www.newtis.info/tisv2/a/en/
You may get a response with a link to enable you to open an account and receive free access to the TIS site. It worked for me. They are very strict about sharing info on links on Forums and Police it which generates a warning to the person who posted the link. I fell foul of doing this so had to delete my post with the link in it. Its a convoluted system so they don't fall foul of the 'Right to repair' legislation in the EU.
The TIS system is included on some of the suite of software supplied when you buy the likes of INPA on ebay which will then sit within the INPA programme on your laptop so you can access it direct on your laptop within the INPA programme. BMCables package on ebay I had came with it.