I am unable to open my Hotmail email – Any ideas?

The day before yesterday I tried opening my emails on Outlook on my PC and it started opening and stopped then came up with a message I’ve never seen before – Something went wrong and we can’t sign you in right now. Try again later.

I thought that was weird. I tried later a number of times with the same result. I thought there was something up with Outlook or Hotmail. But I tried on my Mac and got on without any trouble.

I tried a number of other ways of accessing my Hotmail account on the PC with out success.

Today the Mac cannot log on either. Any ideas of how to fix this?