I've managed now, my AV was blocking it.
I downloaded the latest client and signed up today. I have followed all the steps in the guide and I am currently unable to get past the logging in screen.
The client accepts my username and password and progresses to the next screen but no further and does not crash.
I have so far tried uninstalling and reinstalling, system restart, checked firewall settings and I am at a bit of a loss to understand why it will not log me in.
I have done a fair bit of googling and I cannot find anyone with a similar issue.
Thanks in advance