Apologies, it has taken a while but apparently this issue is down to our media server being classed as insecure, i.e. no SSL cert. Chrome and more recently the new Edge browser block by default page content from what they class as insecure sources. While we work on securing the media server to avoid this issue, should you wish to continue viewing the live feeds you can change your browser settings for the MANXGW.COM website…

Enabling mixed content in your browser…
Click the lock or caution icon, then click Site settings.
Scroll to Insecure content, then use the drop-down list to change Block (default) to Allow.

Thank you