I have the latest build of Metatrader4 on Windows 10. And I have Internet Explorer on my computer.
I think that there seems to be an issue with the address that Metrader4 is trying to link to.
The address has opened alright in my MT4 terminal, so its something on your end.
It seems to be not just me that is having this problem:
And there does not seem to be a valid response in either of those forum topics as to how to solve the problem.