Hi
I have several sites all at different versions, 5.6.3.1 and 5.6.3.2 and a local 5.7.2 websites all of which are just showing the Checking for updates box when entering the dashboard the 5.7.2 website just freezes when trying to select the update link. I have also noticed that a theme change has happened to my 5.6.3.1 site which none of the admin have changed.
is this a problem my end or could it be at concretes end?

Thanks

Rob