Incompatible program

I have very recently ran into a really annoying problem.

When I try to run SH5 the game loads then I see "The internet connection experiences problems and the current game session was saved. Please wait until the internet connection is restored or press OK button to return to the main menu"

I have not changed my internet settings in any way and have resorted to trouble shooting the program(using all available options)
I have even completely uninstalled SH5 and re-installed it but still the same issue.
Has anybody else had this problem? any tips/advice and/or suggestions please.
Thanks in advance