[ms office - 2016] Outlook 2016 - Cant add Exchange365 account

[newpersn]

Hi, I have an issue when staff are trying to setup outlook.

 

They go though the first setup wizard but when Outlook goes off to check we get an error like this:

 

This is a Office 365 exchange with Outlook 2016

 

(I'm more likely to say this may be an dns issue)

 

Any ideas?

Edited September 12, 2019 by newpersn

[localzuk]

Try running some tests via https://testconnectivity.microsoft.com/

[newpersn]

Errors on: HTTPS

 

HTTP redirect works fine. (within the testconnectivity)

[newpersn]

Strange. Done a few windows and office updates and it seems to be working and added the account without error. - strange.

 

The images was only made in july/Aug.